DIRECTIONS 
FOR THE PROPER USING 
The Glafs Apparatus to make Artificial Mineral Water, by Impregnating Ic 
with fixed Air, &c. &c. &c. 
Sold by WILLIAM PARKER and SON, 
At their Glass Manufactory, No. 69, Fleet-Street. 
TAKE the three Pieces apart from each other, and put as much Water in the bottom Veflel as will cover its lower 
Surface all over; fill the middle Veflel with fpring or common Water, and put the top Veflel on it; when that 
is done, fill the fmall Phial with Oil of Vitriol, and pour it into the bottom Veflel; then take the tin Meafure full of 
powdered Chalk or Marble, and put it into the bottom Veflel through the Glafs Funnel ; then immediately put on the 
Oihcr two Veffels. Let them all Hand for about twelve Hours, and the Water will then be ftrongly impregnated, and fit 
tor l ie. It may not be improper to lhake the whole Apparatus very gently, about once or twice in every Hear, which 
will help the Fermentation, and difeharge more fixed Air than it otherwife would do. 
Thefe Waters are recommended by the moll eminent Phyficians, on Account of the very great Number of Cafes in 
winch they have been highly beneficial. 
By adding eight or ten Drops of TtaSurd Mortis cum Splritu Sails to each Pint of Water, after it is well impregnated 
Cath fixed Air, it will refemble the genuine Pyrmont Water. But to render it Chalybeate, add only one Grain of Salt 
6/ Steel to tiie fame Quantity of this Water. 
N.B. A great Variety of G lades, ready made, for Philofophical and Chymical Experiments, maybe had at the 
above Glafs Manufactory. 
directions 
For making the Aqua Mephitica Alcalina, or Solution of Vegetable 
Alcaline Salt, faturated with fixable Air, which has been lately difeo- 
vered to be an efficacious Remedy in calculous Complaints, and other Dis- 
orders of the urinary Paffnges, attended with Stranguary*.— 
PUT an Ounce (Troy Weight) of dry clean Salt of Tartar into a large Glafs, China, or Stone-ware Veflel, and 
pour thereon nine Half-pints of Water. Rain-Water, or Water that has been boiled, if it can be collected per- 
fectly free from Impurity, is to be preferred; if it cannot be procured, good Spring-water may fuffice: flir the Wate'r 
well until the Whole of the Salt is diflblved ; and then fet it to Band in a quiet, cool Place, with a Cover on the Top, for 
I twenty-four Hours. The clear Liquor fhould then be carefully poured off, or, which would be better, drawn off with 
a Syphon, from any indiffoluble Sediment that may remain, and put into the middle Part of the Glafs Machine, which 
will be nearly filled thereby. 
A Stream of fixable Air rnufl then be made to pafs through it, as in the Directions for impregnating Ample Water 1 
with fixable Air. When the Effervefcence is over, and the fixed Air has ceafed to rife, a frefh Quantity of Chalk, or 
Marble Dud (which laft is preferable) (hoaid be added, till it will ferment no longer, and then the bottom Glafs to be 
emptied and begin again as at firrt : the Liquor fhould be fuffcreJ to remain in the Machine, expofed to the fixable Air 
for fixty Hours; it will then be fit for Ufc, and what is immediately wanted may be taken. 1 he Remainder, however, 
fhould be carefully drawn off into clean Bottles, (pint or half pint Bottles are to be preferred) and immediately 
corked up clofely aud fet in a cool Place, with the Mouths of the Bottles downwards, and immerfed a few Inches 
deep in cold Water. 
The above Remedy has been taken with great Advantage in calculous Complaints of the urinary PafTages, and in 
abitual Stranguaries, from a Quarter of a Pint daily, to a Pint or more. If it fhould feel cold at the Stomach, about 
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ardamums, or of the compound Spirit of Lavender, may be taken immediately after it. 
1 he Quantity generally taken, has been about four Ounces by Meafure, or a quarter of a Pint thrice a Day, at about 
an Hour’s Difiance from the Time of taking Food; though, when Ufed by Way of Prevention, Two-thirds of that 
Quantity may fuffice. 
When properly made, the Liquor fhould have a brifk, acidulous Tafic, refembling Seltzer Water, and be totally 
free from any Alcaline Flavour whatfoever. 
-* If the Alcaline Solution be not perfectly faturated with fixable Air, it is apt, not only to be difagreeable to 
the Tafie and Stomach, but alfo to prove irritating to the Urinary Palfages, which it fcarcely ever is when properly 
prepared. 
♦ See Dr, Falconer's Appendix to ihe Second Edition of Dr. Dobfion s Medical Commentary on fixed Air,