"• Seminal vermiculI. 



291 



was greater ; fo that when the thermc^Beter rofe 

 to 81% in the middle of fu miner, our corpufcula 

 moved feven and three quarters, even eight 

 hours. While this heat continued, the experi- 

 ments were varied.-^A portion of feminal fluid, 

 taken from a man, was expofed to the air of an. 

 apartment where the thermometer ftood at 82'' • 

 and another portion put in a cave, where the 

 heat was 66° ; a third in an ice-houfe, where the 

 thermometer flood at 42°. Here the corpufcula 

 moved an hour ; in the cave, four hours ,^ and in 

 the apartment, eight. 



Each of the fluids hitherto examined was full 

 of moving corpiifcuia. The fm.alleft drop in- 

 cluded an innumerable muhitude. 



After the feminal fluid of man, that of the 

 hoffe was examined. No method of obferving it 

 could be more proper, as it was always obtained 

 at the moment of copulation. I ufed the femen 

 of different horfes. — The firft was without clots, 

 very fluid, and of a light cinder colour (i). The 

 corpufcula were not fo numerous as thofe of hu- 

 man femen : there was no difference that I could 

 difcover, except that thofe of the horfe were a 

 little larger. The appendage is more vifible, pro- 

 bably from being thicker; it is diffindly and 

 completely feen, though immerfed in the feminal 

 lymph, fig. 3. Their ofcillatory motion is not 

 T 2 fo 



( I ) II March, the thermometer, from a cold north 

 "wind, only at 43<>, 



