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fcECOMMENDATION
o  t
INOCULATION*
ACCORDING TO
Baron DIMSDALFs METHOD,
£y JOHN MORGAN, M D, F R S, &c.

  DIRECTOR-GENERAL of the Hospitals, and
Physician in Ckief of the AMER ICAN AR M Y.
                                     "-» *  t/''""Tar--.
XJk-
B   O   S   f
O   N  •  JJ^J      L'^ !
Pointed by J. G I L L, in QyEEN-StftESf,"
m tec ixxvi. 
ADVERTISEMEN T.
  /IS it  is  not  unlikely the Small-Fox may- fpread
     in this Country, it has been thought that the_ re-
publication ^Dimfdale^ method of inoculation might
be very feafonable At this time, and not lefs ufeful.
In  cafe the praclice  of inoculation floould hereafter
be permitted, the writer of the following pages  was
requejled to favour the editor with a recommendatory
■preface, to which  he readily confented, not doubting
it's being received with candor ;  as a deftre of being
fsrviceable to the community, was the motive for  com-
plying with  that requeji.   Being  written in hajle,
md amidft a hurry of biifinefs-, the  indulgent reader
will, it is prefumed, kindly overlook  any inaccuracies
that have arifen from his not having had it  in his
power to devote but a-few  hows la this  oihirwife
i<ireeabl' ta/}. 
RECOMMENDATORY   PREFACE.
yH^oooo^yJiT is the opinion of fome very  obfer-
 X # •*  * X  yant men that there are fewperfons
 X:   I   '• X  but  what have the  Small-Pox  at
 X m  .. # X  fome period of their lives.   Accor-
^xxxxx^ di-ng ta t\iem, at leaft  a fourteenth
part of all that are born into the world, die of it,
Of thofe who get it in the  natural  way,  on the
moft moderate eftimatibn, if we can truft to the
reflections of Monfieur Gatti, (to "whom the world
is indebted for his many other ufeful remarks  oU
the fubjecl: ;) the proportion that  che, to  thofe
that recover, is as one to ten. *'   Certain it is that
a great number of the human race  are fwept
away by  its fatal influence ; for ever fmce it has
made its firft appearance' in the known parts  of
the world, it has marked its courfe,  by the terror,
                      A 2                   death

  * D'apie;  !e» CalcMj  )tt plus Rioderes la qiiitorsTerae parti!
    des liomm^ naiffent meuient de  la petitr,  verole, &  fur
    cetir qui  font  a!t.ique» de cette cruclie mabdie, le  nrmbre
    de ci::;  qui <m in ureni, ell  au romhie de ccux  qui en"
    k:c=\>'V:'<~*»  :"*ion q-Hques ecii'-n'n«, comme un a dfx j felon
    d'tut'es, comaie ■.»« a f'-pt j *t  tr.fln d' aup-es quclqnes tablei,
    ft en iv«'M" !.>:', -'' ape> ciiei que 1' Hofpital de i' i.'ioculi-
    ti ,ti J- I.onJre* vi-sit de f juniir, comma un a q iatre.—~
      Guv, <V Is Piejugei q'ii  f-ppof-nt :,-j prcg'.es et  a je
       j-ehf^cli.n de I'lnvcul.ti-'O. p. 82 
(  4  )
death and devaftation that have attended its p$Gr
grefs ; and has taken off more of the human race
than war itfelf.  Next to luxury, ambition and
the  pride of  kings, this  appears  to  be  the
fever eft fcourge  that  ever  afflicted  the unhap-
py race of man.  Villages, towns and cities have
been frequently laid wafte  by it  ;  and  entire,
communities thinned of their inhabitants.

   As there is no difeafe fo univerfal, and  at the
fame time fo mortal,  there  is  none which  has
afforded more exercife to the fancy of fpeculativq
men ;  none concerning which  they have  enter-
tain'd a greater variety of opinions, or more falfe
and  deftru&ive errors than this.  Milled by vain
and  imaginary hypothecs,  they have often ren-
der'd this difeafe, fo noxious in itfelf,  ft ill  more
fatal.  By the heating method they employed in
the management of it,  they added fuel to  the
flame, and armed the difeafe with a tenfold vio-
lence.   Long did this mifchievous treatment pre-
vail, till our celebrated countryman arofe, who
may be defervedly filled the Britifh Hippocrates ;
I mean  Sydenham of immortal name.  At the
head of thofe few who  chofe nature for their
guide, he oppofed the ruinous torrent.  Blefied
with an uncommon elevation of genius and foiid
judgment, by a Uriel attention to facts and  ufeful
pbfervations, he laid the foundation  of a  better
and  more fuccefsfal practice.   1 o  him  we  are
chiefly beholden for the introduction of a cool
regimen in the treatment of the fmall-ppx; and
tho'  it did not immediately and extenlively pre- 
(  J   )
yail, (fo great is the power of even the moft fatal
habits, rooted prejudices and the  authority  of
great names ;) yet in after times.whcn the force
of them were difpelled, the minds of men being
cleared from the mill which athrft obfeured them,
became open to conviction, and, at this day, front
the difference of" treatment, few traces  are left
of the former mortal effects of the difeafe.  Un-
fpeakable are  our obligations,  therefore, to this
great man,  whole  hiitory and exact defcription
of the fymptoms of the natural fmaU-pox with
his method of cure, being founded on  the im-
mutable laws of nature, will endure thro' the
lapfe of  time, bid defiance to the cavils of fcepti-
cifm, and mock the weak  attemrt; of impotent
critics to injure or overturn it.  The  renowned
Boerhaave, venerable for his great erudition and
profound knowledge of the healing arts, after a
laborious pcrufal of every thing w] iccen, in hi,
time, on the fubjeel, declares  '» there is  nothing
" to be added to what Sydenham has delivered
^ on the natural fmall-pox/'

   Notwithstanding all the advantages which wz
derive from the greateft fkill in its treatment, n,
ncverthelefs, is at all times, one of the moil dan-
gerous difeafes that infeits the body, when taken
in the natural way.  In the various expedients
that  have been deviled to mitigate the fevcrity
of morbid affections, and to render thofe which
are dangerous, mild and innocent, no invention,
furely, ( if it may be called an invention, and noc
i-atlier the mfpii^lion of Heaven  iidc'f l:i pity tu 
(  6   )
tnan ) no attempt to difarm a fatal  difeafe of its
violence, was ever fo fuccelsful, or ever equal in
its  importance, to that of inoculation properly
managed.

  When we confider,  therefore,  the  direful ef-
fects which commonly attend the natural fmall-
pox, compared with the mildnefs of its fymptoms,
and the little danger that accompanies the  fame
diforder by inoculation, we are not furprized that
the practice of this art, in fpight of every contri-
vance that has been employed to  difcredit  it, at
different times, by a variety  of interefted men,
fhould triumph at length over all oppofition and
over  the fears and prejudices of weak minded
perfons,  and at this day be fo extensively ex ere i-
fed.  We have room rather to wonder that it is
not univerfal, or that  there is a fingle  perfon to
be met with, who can  think of oppofing, or neg-
lecting to call  in its aid  to himfelf  and  family,
when the diforder appears, and whilft the means
of inoculation are within his  power.

  It is fpeaking with the greateft caution, limply
to affirm, " that the [mail pox by inoculation, is al-
ways  much lighter  than  the natural; that it is a far
iefs  dangerous diforder, and is generally benign when-
ever the fubjecl is well chofent*   So  great, too, are
the improvements that have been  made of late
years in the practice of inoculation,  the prepara-
tion of the fubjecl, and treatment  of the difeafe,
that it is rare  for a patient to be conhn'd one day
by  it, and  we feldom meet with any of thofe
                                   troublefoaae 
                    (  7   )
 troublefome  fymptoms that ufed fometimes to
 cnfue in the neighbourhood of the incifion, for
 want of a better  method of performing the ope-
 ration, owing to a groundlefs apprehenfion which
 prevailed, that in any other way, the diforder
 would not  take.   There are but few now con-
 verfant in the practice, who will allow that thofe
 who die from inoculation exceed one in a thou-
 fand of thofe who take the fmall pox that way ;
 and we hear of fome who have inoculated fede-
 ral thoufands, fuccefsfully,  without a Angle mif-
 earriage.   Can there be a ftronger argument than
 this,^ in favour of the operation, efpecially when
 we further add, that wherever it has been praCii-
 fed, even by the moft illiterate perfons, it has al-
 ways been attended with remarkable fuccefs ?

   Not to take up  too much time on a fubjecl: that
 has  given employment to fo many  able  pens, I
 fhall fatisfy myfelf, for the prefent, in jufl point-
 ing at a few  of the advantages ariling from this
 practice.  And thole fuch as are obvious to every
 one who will allow himfelf  to reflect ever fo lit-
 tle upon its falutary effeas.  In  the  firft place
 then, it is highly  beneficial  to the  patient, that
 he has it in his power to receive the difeafe from
 a healthy fubjecl, in its miideft ftate, and  in the
 hied manner,  and in the abfepce of every other
 difeafe.  The choice of the patient's age, of the
 temperature of the- air, feafon  of the  year, hale
of the blood, and general  habit of the  body,
" free from gouty, rheumatic,fcorbutic, infiammaU;\\
*&  ar feverijh dlfvoftions of every kind" as wtll as of
ever* 
C  s  )
 cvety acute or critical difeafe with their effects*-
 which render thofe who labour under them more
 unfit fabjecls of inoculation,arenoneofthemoil in-
 con fiderable benefits which may be derived from
 the taking the difeafe in this way.  Yet thofe are
 not all ;  there is  fome advantage in a fuitable
 preparation of the perfon to receive the fmall-
 pox, from procuring the circumftances neceffary
 for having it with the lead poflible inconvCniency
 or danger.

   I would net here be uriderftood to mean  that
 every perfon to be inoculated, ought to go thro*
 a courfe of medicine ; or that any particular  rule
 can be laid down that will apply precifely to every
 cafe. Whilft "thofe who are in high health or  of a
 "  plethoric habit of body, require tobereducedto
 "  a more fecure ftate ; thofe who arc weak  and
 ts  low to be recruited,  and  thofe who abound
 iC  with crudities,  or fharp  humours,  to have
 "  them  corrected or  expelled" ; fo there are
 fome per fons who need no  preparation whatever;
 and in whom no  change  can be  made  in their
 conftitution, whether by  diet or medicine,  that
 will not, by removing it from that exact medium
 of difpofition, in which the moft perfect ftate of
 health confifts, prove hurtful rather than fervice-
 able, and difpofe them  to have the difeafe more
 unfavorably, than if they were to be inoculated
without ufeing any medical affiftance at all;  but
thefe cafes  are perhaps few:  And fuch  perfons,
when no ways prepared, have from  inoculation
 alone, and a care to avoid all errors in the non-
                                     naturab. 
                    (   9  )
Saturili,  had the fmall-pox in the flighted de-
gree, and nioft favorable manner pteflible.

  The conditions riecefTary for this purpofe, whe-
ther  natural or acquired by  preparation,  are
*'  healthy fubjects, a fweet  breath, a foft  fkin,
"  arid fuch i  difpofition of the  juices,  that a
"  flight wound or  fcarification  will foeedily
"  heal."  *  Thefe denote  a healthy ftate of the
blood as well as of the nerves and Ikin, on which
the  effects of this  difeafe, very much  depends*
and although  thofe conditions tend greatly to
render the difeafe mild, whether taken in  the na-
tural way, or by inoculation, yet  independently
of every other  circumftance, it may be faid very
truly in praife of inoculation, that it contributes
greatly to render the difeafe more  mild and fafd
in itfelf.

  : Of this we need no greater proof  than what
Mr Gatti produces f •, he afferts that m tne Le-
vant  where the fmaD-pox, taken in the  natural
way, is always  as mortal as in other places, ino-
culation is ever void of danger.  There we meet
with  women who have inoculated  thoufands,
without any dangerous  accident having befallen
any of them, and the only preparation they re-
gard  is, to fee that the iubjecls of the operation
are fuitably prepared to  their hands by nature,
and have the conditions already  enumerated ;
wherefore We have reafon t6 believe that  among
all  the advantages from inoculation, the greateil
                     B                     of
  • GtttT.   f Picjugci fur la M«.hod« d' ia«culcr, pafe $7. 
                   (   '°  )
 of all is the power of choofing in  what part of
 the body, the variolous  matter fhall enter.   In
 the natural fmall-pox, the contagion is moft com-
 monly taken into the ftomach, in deglutition, or
 apply'd immediately to the brain and lungs by
 refpiration, organs of the moft delicate kind, and
 whofe actions are moft  effential to life; here the
 variolous  matter by exerting its whole undimin-
 ifhed force,  acts with all the energy of its poifo-
 nous quality, to injure the blood and nerves,  and
'produces  the moft fatal effects, whilft in the other
 way, being received in a very  fmall quantity, by
 a verv flight incifiort in the fkin, it  mull  pafs
 through the lymphatic veflels and glands, which
 ferve as ftrainers, and which do not fuller it to en-
 ter the blood, without  being firft  diluted with
 lymph in  its courfe to them, through the  veflels
 of abforption, which convey the fmalleft portion
 of it, mixed  with a very great  proportion  of
 lymph, and therefore in a vaftly weakened ftate,
 firft to the glands, and from thence to the blood
 itfelf.

  In refpect to the choice of matter for  inocula-'
 tion, the  principle circumftance  to be attended
 to, is that it ought to be  taken  from a patient
 who has  the large diftinct kind,  before the  de-
 cline of the difeafe, and that is free  from every
 contagious diforder.                          ^

  From thefe circumftances Which  inconteftably
 prove the great benefits arifing from inoculation,'
 being now well known and citablifhed, the prac-
                                           tice 
iicc of it in America is become  very  general in
the middle colonies ; from whence, together with
■the. improvements of employing a cooler  regi-
men, a milder preparation,  and the fmallnefs of
the ineifior^ for ingrafting the variolous matter,
the fraali-pox is now difarmed of its former terr
rors, and become an innocent difeafe.  But the
deyaftations which it has formerly made in New-
England, in the natural way, and the apprehen-
sions which have filled the minds  of many, con-
cerning its fatal  effects, have made the inhabi-
tants of thefe nothern colonies take  great  pains
to prevent  its getting a  footing  here; by  this
means it has been kept out from among them,
for a great number gf years, till within a twelve
month paft, daring which  time it  has  been in-
troduced by. the  Britifh troops, into the town of
Bofton \ and inoculation,  which was formerly
common  enough, been generally employed a-
gain, with thegreateft  fuccefs : In the  mean
while  from  the  communication  betwixt  the
town and  country being cut off,  and the pains
taken to prevent its fpreading through the coun-
try, whenever it had made its appearance  there,
jthas been almoft  wholly confined to the city.

   But fmce the late  rendition of Bofton to  the
 American  arms from the numbers who have had
 the difeafe fo recent, and thofe who were left be-
 hind  with the fmall pox upon them, and from
 the infection that may be fuppofed to remain for
 a long time in the bedding and heufes of thofe
 yho have.had it; as well as from its having brqlp 
(  »*  )
 put among the foldiery, f«w of whom have cy#r
 ^ad the  diforder, there is room to imagine not-
   thlanding all the precaution taken to preven^
    t :„  will now fpread through the country.
     perhaps from the marching the troops, back-
     us  ad forwards, and the  continual moving
    iae inhabit an. s  to and  from Bofton, it may
       come general through all the New-England
 goY-   .^snts.

   In ^o  delicate a juncture  when we are Snig-
 gling  with ah bppreffive war, what an addition
 jmuft it prove^to the burden, fhould the fmaU-pqjc
 fpread fait m*the natural way ; and what an ad-
 vantage  muft it be to render inoculation  familiar
 every-where, and to have a fufflcient number of
 practitioners at hand, who are experienced in the
 treatment of the difeafe, and  who  are well ac-
 quainted'with thepractice and late improvement
 of inoculation ?  Any attempt  to render  tlte.
 knowledge of this matter more general, by re-
 ntoving  every prejudice againft it, or by recom-
 mending to public notice the beft treatifes on the
afubjec^ by thofe who have experienced the good
 qffects^ of the practice  they  recommend, I think
 Cannot fail of being received with candour.   In
 that view, I now prefume to urge the good peo-
 ple of this' countrytq the perufal  of the  follow-
 ing treatife, on the prefent  method  of inoculati-
 on j by the illuftrioui and defervedly celebrate^
 Baron Dimfdale, to whom both Europe and Ame-
 rica will  be ever indebted for his improvements
 in inoculation  and the treatment of the difeafe,
                                         and 
(  a*)
 and who has oarry'd the benefit* arifing from the
 effects  much farther than, was ever practifed by
 any of  his predeeeflors, not excepting the great
 Sydenham himfelf.
   His  method like that of Sydenham, proceed-
 ing on  thefure ground of experiment and ob-
 feryation, is founded on  plain tacts, fimple and
 uniform, in which he appears not to have fuffered
 the Ulufions of mere theory, to have ufurped the
 place of experience, or to have perverted hisjudg-
 ment.  The good effects of his method are con*
 firmed  by the united fuffrages of the beft practi-
 tioners,, and have eftablifhed his character on  the
 moft folid bafis.   His talents- and gFeat reputati-
 on are well known  in the literary  world. The
 ptility of the work and the favourably reception
 its firft appearance met with from the publick,
 as well  as the avidity  with which its feveral edi-
 tions have been received, may juftly fupercede
 every other eulogy, and render any apology  for
 its pubticatiqBjat thisfime, unneceflary; nor have
 I the vanity to imagine my approbation is needed,
 or  can ftamp  any value on the performance.
 There are Tew perfons who need be told, that his
eminence in his profefl^on, and the  fuccefs of his
 practice, in the treatment of the difeafe, procu-
 red his being fent from Great-Britain to theeourt
 of  Mufcovy, to inoculate the  Ruffian Emprefe
 and her Son ; that he was enobled for this fer.
 vice and was made body phyfician to her Impen.
 al Majefty ;  and after inoculating many of the
 firft perfonages in the empire, fuccefsfully, he  re*
 turned h*>me crowned with honours.
                                          If 
(•  »4  )
   :. If I iniftake not the exact epocha,  it was j uft .
»  at a time when that, magnanimous Princefs  was
  about to engage in > war with fo formidable  a
 "power as the Turks, and in which fhe came oft
  ib victorious.  Far  from- dreading  the  confc-
  quence of inoculation, at fo critical  a period, fhe
  judged  it  to be a matter qf the higheft impor-
  tance, to fecure againft. taking! the fmall-pox in
  thei natural way, which the war might otherwife;
  introduce, and the jfear (.of its dreadful  effects
  might impede the operation of her arms. , In that
  particular, fhe has held forth an example worthy
  of our imitationr.and which by the event proved
  the wifdom of the meafure. ,jr-i  ./^   j>ha
   3li T . .L        r.a.;         -■  ^       ;
   , From thepre.fentpoftnreqf public affairs and the
  moral impracticability; of preventing the fpread-
  ing of the fmall-pox in the natural way, nothing
  can be more intercftiftg to this country, than the
  manner in which the prefent. attempt,  to intro-
  duce inoculation may be received and  eneoivra-
  gfed.j. If it  were once, to eftablifj^ ritfelf  in this
  province it would be the fureff means of extend-   *" »
  ingots falutary influence throughout the neigh-
  bouring  coloniesthat.are in  a iimilar  Tituation,; ,
  and the practice of it being kept ;r*p, the difor-
  der would never became formidable again, nor
  excite that.panick it has.often done^in times paft,
   -•?  '    '  aat' ■ '"fc   ?i: ■ a   .A -       -...;.
   .Happy-for mankind, wherever inoculation has
.  okjcq had a fair trial, thofe prejudices,, that are apt
  <uninfect vulgar and weak-minds,  foon vaauih,
  irom the advantages that attend the practice of 
(  «5 O
 it.  Formerly there were  fome, otherwife, feff-
Tible people,  fo alarmed  about the  confequence
of the operation, as to think "  the fmalUpox  by
" inoculation  as dangerous, as when taken the natu*
" ral way ; and that it was contrary to morality
" and religion to practife  it." The former of thefe
objections to it, I hope, I have fully  anticipated,
and fhewn them to be deftitute of truth ; and in
anfwer to the latter, I fhall juft obferve,  that in
the middle colonies of America,  particularly in
Penfylvania, the Jerfeys  and New-York,  where
the difeafe has long been endemial,  from the  u-
niverfal practice of inoculation, it has become  in
a manner harmlefs, and  there are few  people to
have the difeafe but infants and ftrangers.  There,
inftead of confidering it as a crime to inoculate,
people would accufe themfelves of being  acceffa-
ry to the death of fuch  as fell a facrifice  to  the
natural fmalhpox, if, by their neglect the  opera-
tion had been omitted..  They take care to have
all under their charge inoculated,  when at the
moft fuitable age for taking the difeafe, efteeming
themfelves refponftble to  their children  aad fami-
lies, whofe prefervation they are bound  to con-
fult ;  and to the community -of which they are
members.

   It may be there are fome humane perfons who
have no objection againft inoculation themfelves,
who,  neverthelefs, 'think " the apprehenfion  of
«c  thofe, who have never had the difeafe is  a fuf-
" ficient reaibn for difallowing the practice of it
"in others."'   If this- be admitted, as fatisfactory
                                        where 
 where the difeafe &as not made  its appearance.
 and is in no daftger of fpreading ;<c are hot the
 fears of thofe, on the other hand, or" equal force
 and  validity  in  favour  of inoculation,  who
 ^re  expofed  to take  the infection,  leaft the}*
 ihould be feized with it in the natural way ; and
 is it not equally juft that thofe pcrfons mould be
 allowed tq guard  themfelves and their families
 from the dangerous  effects of the natural fmall-
 pox, by employing inoculation^ as that others
 fliould forbid them ;or is the  intereft of that
 part  of the community who wifh to prefervs
 themfelves from the ravages of a deftru^tive dif-
 eafe by means of it, lefs to  be regarded than of*
 that Other part who do nqt choofe to pradtife it ?
 To forbid it, when thus circumftanced, is a grea-
 ter volation Of the natural rights of mankind to
 make ufe of the means of felf-prefervation, than
 to employ them, though  others may be averfe
 to the meafure ; efpecially when the  fooiety at
 large is benefited by it"..  How wife is it, then,
 in every  community, Where there is  danger of
 fpreading the difeafe, to provide for the fafety of
 its members by rendering; the practice  of inocu-
 lation as dniverfal  as pbffible*

  By it whole countries arc freed from conftantr
 dread of the mifchiefs that might arife from its ra-
ging amongft them", at a time when they are leaft
prepared, and  wheii few ambngft  them having
had the difeafe, are in a fituation to fuccour their
friends, by which means, thbufands fail ^aily vic-
 tims to its  deftructive rage/
                                         The 
C  *7   )
  The  fubject v- !:nportant: and the publick  U
grc/Jy  intccfte^ h it ; and not the has to, that
it his been fo comparatively little  praeticd. and
therefore is vet fo new to  many in this country.
In the treatment of difeafes". miitakes at  firii have
a ratal tendency, and there is a necefhty of a fkil-
iul  director, to prevent errors on account of the
pernicious coniequences of them,  winch acquire
an eftablii'hment by time,  cuftqm or great autho-
rities..  Thefe, I 'aa>_>ine, Dimfdalc's treatife will
have an happy tendency to prevent, by rend'ring
the practice of inoculation more familiar and bet-
ter   undei ilood.   To thofe who  have  not had
much opportunity of feeing in what manner any
physical operation is beft managed, or how a par-
ticular di'eafo is treated with the greateft fuccefs,
it  will  always be of  infinite advantage to avail
themfelves of the affiftance of a fkilful pilot.  Na-
ture conceals many other works fo ekdely as of-
ten to elude the researches of the moil mquhitive,
and requires the  experience of others to point
them out*

  This author's practice will  caft great light  on
the bufine^s of ii.ocu^ation, and ferve as a clue to
guide the attentive iollower in the treatment of
a difeafe ia which  rhe molt clear  lighted often
have occafion of help to thun danger,  an<^ to con-
duct  thofe  who are committed  to their care
through the di order, with fati&faction  and  ho-
1 our to themfeWcs, and benefit to the communi-
ty.   In the account which our author has given
Us of his  practice of inoculation  and treatment 
(  is  )
of the  fick,  he has laid down ample directions,
and, all along, expreffedhimfelf with remarkable
perfpicuity,  and as much eleganee of diction, as
the fubject will admit.

  From  the experience I have had of the  good
effects of Dimfdale's method of inoculation, 1 ima-
gine, in recommending it to fuch practitioners as
may be fhortly engaged in taking care of thofe,
amongft  whom the fmall-pox may fpread, and
particularly to the furgeons of the hofpital,  and
thofe in the army under my own direction, I am
performing one of  the moft important fervices a
perfon in my ftation can well render to them, or
to the country and people he is amongft.   Every
attempt  to  fpread the knowledge of any ufeful
practice,  has a natural  tendency to advance fci-
ence and redound  to the publick good.  All the
merit I propofeto myfelf in the recommendation
of this author, is the holding him forth to more
publick view, and a defire to excite a general at-
tention to fo valuable a performance amongft fome
who may be lefs acquainted with its value.  As
the publick good is my intention in this, I flatter
myfelf I fhall attain ray wifli, being perfwaded
that no perfon who fhall carefully  read the fol-
lowing fheets,and attend to the information they
contain!  will think their time  mifapply'd,  or re-
pent their having followed fo fare and experieii:.
ced a guide in the practice of inoculation.

                    JOHN  MORGAN,
     Cambridge,  in New-En gland
        Sipiil i oth   1776. 
 


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