STANFORD UNIVERSITY SCHOOL OF MEDICINE
STANFORD MEDICAL CENTER
300 PASTEUR DRIVE, PALO ALTO, CALIFORNIA

DEPARTMENT OF GENETICS
Professor Joshua Lederberg

Dear Dave- Ladders or

January 31, 1967

Thank you for the note; I usually read the editorial}

page but would have missed it yesterday if you hadn't
peinted it out.

Yeu are prebably waarv ef the whele business,
and yeu may already know very well the scientific back-
greund of the preblem. But in case the Harlow argument
sevnds intimidating, I thought the enclosed texts might
be useful.

Anastasi's noint about the relativity of env/her
compenents (i.e., their percentage influence has te add
up te 100%, hence the imporsance of ene depends on
the range ef the other) is toe eften everlooked, and
Harlew is quite guilty of the fallacy. It would be
interesting te knew the biology of intellectual difference
but I despair of finding out while there is se much
environmental cenfeunding, and I den't think we will
until we have mere immediate biechemical and develop-
mental appreaches te the nature of intelligence.

Our pesitien is net te attack the reasenableness
ef Shockééy's questions, but the inflammatory style in
which they are put. But I den't want to add te any
public pelemics on this, certainly net in the context
ef a persenal feud.

Yours,

Lr. JosepH P. Kennepy, Jr. Lasorarortes For MoLecutar MEDICINE
dedicated to the study of mental retardation

Molecular Biology Heredity Neurobiology Developmental Medicine

 

 

 

 

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