73 
ifce Wolff i&a. duct derivelives, particularly the s«ai<ial veaiels*, 
in tbeir de?slop:3:nt, in the iw a «ni ic the fro -ru^rtin, cay be 
lEora eerily explained on a basic of quantitative reaction than on the 
purely qualitative on** -he developn-nt of one, „ni at soot two seal- 
nal Ys.'icleo in nor:: 1 males# of srhiob only the nt ri-.-r one develops 
tc any tq^reciahlc ai-.a, uad t ho appearance o: four or five i: tun fa- 
' olOi of which aone grows strongly oaough to bo uD'ioe&blo in gross 
dissection, con be easily explained on th: basis of a specific horaoas, 
:±r.d *hs l&ck of it* or on tfca basis of an altered quantitative physio¬ 
logical reaction in the organise* In the froe-aai*tin, the growth of 
■ 3 1 rvon o these trticula on oatfh ids, aa found in end c&oj. to¬ 
gether with the evident nal: type of davolopnant found in aeveral of 
then, out to a 1 as degree than in the isale, and the evident graded 
aeries that they forr., hardly look like a specific korsone action, 
pickin'.; out the Sale structures for stimulation and inhibiting the 
ferale ones, for it wo Id stimulate only the ant<vior one; bit can be 
under tood better, perhaps, on the basis of the development of C-aaon 
pri ciordia under one phsyiolOoioai coriiitioc up to a certain state# 
then stimulated as a whole t a quantih& lively d ffereni condition, 
ifee varying degree of development in the sjpI .s eleven vehicles ia 
a u&ntitativ' d fferenoe, net one of quality. thi3 is very sauefc like 
the iort of result produced A pie’ reaction ay teas by w dely dif¬ 
ferent choice 1 re gents, which work principally by altering th: 
hyaiological rsaotion quantitatively. 
.he earlier appearance of para-urethral duct a of ferale tyre is 
perhape hardly the action of a ©I’ecHio rials borvone, w- icb should 
pr oduce pro. tales of scale typs. not neroly crtiaul&t* the pri^aordiu® 
of tho female structure. 
7h relative lengths of the urethra proper and the typs and de¬ 
gree of degeneration cf the saeeoneptjrds, are capable of explanation 
either ray* :fce fact that that of the free-awrtin usually fallows the 
sale, but i« slower than either sex nomxU is a quantitative difference 
