ON GENERATION. ij^ 



for the tails or threads have no proportion to 

 the reft of the body; they are of different di- 

 menfions, though the bodies are always nearly 

 of the fame fize at the fame time. The motion 

 of the globule is embarraffed in proportion to the 

 length of the tail. When the tail is too long, 

 it Ibmetimes prevents the progreffive motion al- 

 together, leaving nothing but the vibrations from 

 right to left; and the globules make evident 

 efforts to difentangle ihemfelves from this in- 

 cumbrance. 



E X P E R. VII. 



Having procured the fcminal fluid of another 

 man recently dead, I put a pretty large drop of 

 it on the glafs, which foon liquified without any 

 mixture. It had the appearance of a clofe net- 

 work, the filaments of which were of a confide- 

 rable length and thicknefs, and they feemed to 

 proceed from the thickeft part of the liquor, 

 'pi. IV. fig. 9.]. Thcfe filaments feparated in 

 proportion as the liquor became more fluid ; and 

 at Lift they divided into globules, which feemed 

 at firft to liavc too little force to put them in 

 motion : But their power of moving increafcd 

 as they receded from the filaments, and they ap- 

 peared to make confiderablc efforts to dilengage 

 themfelves. In this manner each of them gra- 

 dually drew tails of different lengths out of the 



filaments. 



