/ 
6 ^. 
velopmeat of both sets of duo*s on the loft aide advanced 
than tho« e on tho ri.ht sido, arid thlo is particularly true of ievelpp- 
aont in tbs sale direction. The retreat of the rcca ana of the . %.z&- 
nephro: and the loop of the ge-ital cords all ; ivo evil not of this, 
(2) In fersalss, the ancon* vaginalis usually fails to d vs;lop 
to any conidurable dopth, while, In the sals, it gresra vvntro-laiertlly 
through the Inguinal canal to th * top o* the *croturj, in the specimens 
studied. The deriv&tivra of the ingtr!no.1 IV sent, the round lig sent 
of tbs fcs&Ie, and the gubet'anculur fcrsiis, in the wale# tfeile they 
behave in such the sane amwr, a a nade to appear to do differently, 
by the differing development of the vaginal process d :ri?ativos, in 
the two sexes. oth igaa nts elongate, then thicken for a tire, 
then shorten; and, in the ;tjue*> beyond tbi? study, beco e reduced 
to their definitive condition, the tub© racul tats in th fcoft'-s of the 
3crottna, and the round li^aaent in th© body cavity* Th the stages 
covered, by this stody, the ronad liganaat lengthens and thickens In 
the abdoaan, fcecan :e there Is co aaccus to receive it, and the guber- 
naoulaet lengthens, partly in the abdeeon, but mostly in the succus 
vaginal!.. , t.dj's.i thickens raolly in the ;? siccus* F*art of tho ro ,-ri Xi£&.~ 
sent is taken up into tbs sails of the cornua uteri cl o, but it 
thick; ns ali.hlly ?coro than the guborncultm in the stages studied. 
Freo-sartins ars inb-raediai©. the ease diff ranee in decree 
of stil^nses is ouad in the Vo fr ns-raartins of tho s a age (3,0 ©a*). 
The others give a series of stagea in which tho ©scows is deeper than 
in feaalee, but <3i co deep as In svxles of tho cars age, ani the 
thickacing of the inguinal ligaaent derivative occurs, partly in in* 
saccu 2 , and portly in tho ohicNn* depending on the depth of -be aaccus. 
In the. two latvv.it eleffj f ta tf Ml for this paper, the WHI had pene¬ 
trated the inguinal er.aal c-n bet but in Mm cases it penetrates 
on ono side only, end that side develops as in a oaie, while the other 
sido develops ac ir: a feiaalo* .here ro Id *i>p*ar to be a tis© after 
