( ri3j? ) 
On the 17th of Septemk ijoi. about to of the Clock 
in the morning, I view'd again the Semen MafcuUnum ot 
a young Cock, which the Poulterer judged to be about 
twelve weeks old, it had been kiird an hour before, and 
found the Animlcula full of Life. 
I took fome ot the fame Seed, about the quantity oi a 
great Pin's head, and fo ordered it, that very little of the 
fluid Matter could exhale. 
I obfervy this Matter every hour, and in the fame even- 
ing about feven of the Clock I found the AnimdcuU as 
lively as if they were proceeding from a Cock that was 
newly kilKd. 
But about 8 or 9 a clock I could perceive that many oi 
the AnimdcuU were dead, and that in one place, the fpace 
whereof was no larger than a Sand, there were great 
(holes of them living ^ but a Ifttle further, and in a place 
of much the fame extent, I could not difcover the leaft 
Motion in thofe that lay there. 
The 1 8th ot September in the morning, about feven a 
clock, and alfo at noon about twelve, I again made my 
Obfervations of the fame Seed, as it lay in a Glafs Tube, 
of the hrgenefs of a thick Pin, but I could fee no life in 
the AmmdcuU ^ but when I lookt upon another part of 
the fame Matter, of the bignefs of a great Sand, and 
fpread very thin upon the Glafs, I faw a great many very 
lively and nimble in their Motjon, but their Life and Mo- 
tion dwindled away till at hft I could perceive none 5 the 
reafonof which i judged to be, that the thin fluid Matter 
was all exhaled from the Seed, and that then the Animd- 
ml a dye prefently. 
To fatisfy my felf farther in this matter, I took a dead 
Cock that had been kili'd and pluckt the day before, be- 
, tween the hours of feven and nine in the morning, and 
opening the Body, I puU'd out the Guts and the SromMch, 
that I might the better come at tke Vaja Scmlndia Deferens 
tia^ I fqueez'd out of one of the Seminal Veifcls a Drop ot 
Ooooooo 2 the 
