(750 
Fir ft, the faid Vm Home makes the Spermatid? Artery In man 
to goe to the Te(licles in a windingjzut Be Graaf in a (tr eight way, 
Secondly, the former affirms, that the 1/4/4 deferentiafhssiz no 
communication withthe ve ft cuU feminales $ but the latter main- 
tains, and demonftrateth it to the Ey,there is fo great a commerce 
betwixt them, ut jemendum a T ejjkibus per vafa differentia afftuens 
in Urethram e f finer e nequit, propter caruneulam claufam 3 neceffartb 
influat in Veftculas 7 in iifque pro future coitu^efervetur. 
Thirdly ,the former is of Oipinionytriplicem effemateriam feminism 
but Be Graaf will have but one only-, anfwering the Arguments, 
ufed both by Van Home and Br Wharton to prove that triplicity. 
But that, which Be Graaf much infifts on in this Book., is, 
to fliew what is the true Subfiartceoi the T efticles, znd to vindicate 
the DiCcovery thereof to himfelf 5 affirming pofitively, that 
no man., before him ever knew the r uth 
of it. * For the making out of which, he firft de- *Jf 0 f^ 0 ^ 
nyeth, that the Teftes 3X£glandulom y or pultaceous • c ? ar ™ 
and then affirms that their fubftance is nothing elfe N.3j.p.68i. 
but a Congeries minutifimorum <vafculorum femen 
conficteptinm , qua fi abfque ruptione diffoluta fibi invicem adne- 
fferetur, facile viginti ulnar urn longitudmem excederent. Which 
he affirms, he can prove by ocular Demonftration. 
Then he (heweth, how the feminal veffels pafs e Teftibus ad 
Epididymides, vid. not by one Trunck ( as Dr. Highmore thinks) 
butby 6, or 7. fmall ductus's 5 affign'ngthe caufe, why Dodior 
Highmore did not fee them. 
lurther he examines-, An femen in teftibus conficiatur 9 
utrum ex Sanguine vel ex Lymph a i quomodo elaboretur, cral- 
fefcat, iadefcat qua via a Teftibus ad Urethram excurrat. 
Moreover he endeavours to prove, Feftculas feminales ordina- 
fas effe non jeminis generathni, Jed recefti&ni & affcrvationi.. 
Healfo obferveth concerning the feminal matter^ that 'tis com- 
pofed ex dupllci materia^ which after Ariftotle, he calls «*^- 
j**7ixoV acii oyy.Gv cm^inhv , confidering this twofold matter like 
Bough mi Ferment, this infe&ing and quickning that, and the 
grofler part beings confervatory and vehicle to that; which is moft 
elaborate. 
When he examins the Penis ^ he taketh notice , Omnes ha$c*> 
O 0 00 2 nu s 
