New-York tribune., 1902-08-19
OBITUARY.
PROFESSOR LEOPOLD scHENK.
Vienna. Aug 1s-Professor Leopold Schenk
author of Determination Of the Sex died to-
day at Schwanberg. Styrla.

Vienna Aug 1s-Professor Leopold Schenk.
author Of Determination Of the Sex" died to-
day at Schwanberg. Styria.
DR. Leopold schenk. who was fot twenty-slN
,aare a director Of the Embryoogical Institute, IN
Vienna was horn on August %. $40. Hermeny
Hungary From the grammar school IN Budapest
he went to the Vienna University, where ne TOOK
the degree Of NJ. D ir 1855 He had attracted t1t
attention Of the eminent rhysiologst. Ernest
PrUecke VINO made him his assistant as con aS
he had taken his degree Il" held this place Hil.,I
1879 having in the mean time become reader l"'
ernhryology and physiology Cor the university III
1873 he was appointed professor eNtraorolh3tIE ~
embryology and president ~ the f1mprH oi,7i
Institute of the university and professor ordinary
in 1895. -
He gained a wide reputation, both as an III
structor and as author, being regarded dS ''
authority in physiology and emhryol"sy- ne 49,
ated \ sensation not only in scientific and meoi'7i
circles hut in the world at large, ny the an
noUncenent in 1895 that ne had discovered tnt
secret of the determine ton Of sex. and tha' "i''
on the part of the mother would ueClut ''e
Of her offspring. The publication OF mis- Se',''
of sex aroused much adverse criticism ana 81,
outcome was his enforced resignation from '
,7oeition he held which declared was the result
Of the envy and ignorance of the other uniNerSi''
professors -.
DR. Schenk said that his theory was me 'eS'l'
Of +,rapt,- wears Of practice and experiments
-, con+-olltnp influence. according 10 III
Schenk the lack Of It creating male Cl''.
and the excess of it causing those porh 10 oe
Rut the theory has been partially dlScreuilep ~
other scientific men. Or SchehK Wa ~
to treat many cases in which male offspring were
desired and the results declared satisfactory
He began his treatment two or three moii'"S
fore conception, and continued II FOR 'lre' io'i'
afterward OF his theory he said several !'"i'
ago:
gave the treatment %ndgr 5Ta' E 10 can 5n' re You
tbp results of nv discovery and let you nay "
scientific facts upon which ro1 my saw can
determine the Of child to he horn, you % NM th
woman shall become the mother OF son an" not
:" nv trestment has no other aim than causing
boys to ne born made my discovery many He,,.9 7
and subjected it to proofs IL Is @ ng ~ fur Of
mrorn mI fb fsn7ilies Of relatives friends and
49, sar r,5a m in vlnsa abiIity to keep secret
had fun confdence-fourteen cases in all
anpasI TO me- must be able 10 watch the pa
tent. must be certain that my dlre'm@mN s az ,ee
an Experimental test NJ my discovery must
can bring it about with human beings, or With
animals having one young AT tine l4a' ans
ing many together that the majority shaH oe
+ernininE heforehani whether male femal"
bird would come out. scarcely ever vas mis-
have achieved success in family in which
the desires for the birth Of 3 son were intense
II I told YOU the name OF the head OF the family
YOU would know that him To pay me- zlo""
for my services would he no more than toT YOU
10 nav A doctor q for examining your throat
But did not accent any reward. 49, s,.u
All former theories and hypotheses have been
proved false According TO my discovery. the man
has no influence whatever the sex OF the chlll
4 all depends upou the woman. The embryo lS
=axIcss during several stages Of deNeiopm"ht- y
& possible that my treatment can develop male
chtd even in this stage but there Is no 'eFfaIn'f
Nv discovery is based upon tho scientific fa't
that the blood = up man contains h''
million blood c0rpUsceS the bearers of life EiNlnE
woman contains only four millions This dire.
enCa Is the basis of differences in sex and OF the
different moral and physical working powers m
man and woman This proportion q observance
In the sIghtce- quantity ~ blood from 2 man or
the embryo n. right number of blood corpuscle1
required by the male 7 have succeeded IN attain
ing this effect ov suitable uouriShuer- Of n"
woman and bv influencing n" mrrab0io process
in the change Of matter.
T6a proof of my discovery IS that 7 ran tell
from the expccrart mothers products whether
she VIII have a son ~ 4 daughter 7 har" never
made mistake in man- years tn aDDitt0- This
test
Or schenI uas the author or Handbook -
Histology Handbook of Comparative Embryolo-
gy OF Tertebrate Animals BE- A Contribution 70 n"
Theory of Artificial Trout culture. The Irfr
ence OF Color on the Development or fhe Life ~
Animals" ON MiCro-orEari risn. and a two vol
7Iule work History or Evolution Besides these
Professor SChenk wrote great number ~ sci
entf6c treatises on physiology and emhrEoioer