li> 
free-nartin* but the uif^arcntiation of tbs tunica albuginea* :$ex- 
cords, and rate, if ssore definite. The tunic , albuginea and aex- 
corci region arc rsoro decidedly sal© in type and renew,bio those of 
« >♦! C". sals. *ho rule reaches a sore contra! position than in 
duct 
.,rou? of asaonepicric tubules. The hydatid is not noticeable as in 
the preceding Ouse and has loaf, its oolusnar epithelial coat. ;h» 
blood vessels are still in the region between tbs reie and the sex- 
oords* as in the feralc, not outside the sex-corda as in the rale 
*‘rc'2 7*5 cn. upwards. a coiled ppididynic is present ao in staaller 
sales but out of relation tc gonad age* It therefore a pears that 
in soas cases the cortex of the ovary, as represented by the secondary 
aex-cords* develops in frae-r irtina before the sale bereone begins 
to be effective, but that* in vuefc cases* the hortiono causes degene¬ 
ration cf the cor 33 fro® their periphery inward» so that they are 
not found in the later stages aa a rule, tut secondary sex-cords 
do not appear at all in other cases as shown by til lie ('? ) for 
a ?•?: c»* fr-^e-rarlin. In all oases so far recorded the gorsina1 
epitbelico is cut off fros the sex-cords fey a secondary tunica 
albuf inea like that of a rale ->f a younger cta, e, if net by the 
primary one as in tne sale* This indicates a considerable saouist 
of variation in secondary aoor-coria in the fr e-rartib. In four 
out of the five studied there is no definite evidenoe that these 
hove ever formed* ut in the fifth case (?. osu froe-tmrtin 1, 
fi.i. r.'.) the cores wore highly isveleped and undergoing secondary 
degeneration* his is correlated with reduced six© cf rVse-mrtin 
gonads '3 compared with aorsal r.aloc or feral ea in early stages* 
later jceetiries followed by increase in size far beyond that of 
the cereal ovary* and ac sorption of testis characters with seller 
size than the norsaal t-- ti a. 
