«9§ SEMINAL VERMICULI. 11^ 



much lefs than in many others : though the 

 heat of the atmofphere raifed the thermometer to 

 66°, all ceafed to move in half an hour. 



The epididymis of another living ram was 

 examined (3). The quantity of feminal fluid vi^as 

 fo great as to fill two-thirds of a watch-glafs. 

 Viewed with the naked eye, it feemed in conti- 

 nual agitation, notwithflanding the glafs was fi- 

 tuated on an immoveable plane. A drop was 

 examined with a magnifier of fmall power : the 

 whole feemed in motion : and the microfcope 

 proved that this was produced by the agitation 

 of the corpufcula alone. They hardly moved an 

 hour. 



After examining the feminal fluid of fo many 

 warm blooded animals, I determined to examine 

 the femen of fome whofe blood is cold. I began 

 with fifhes ; and for this purpofe the experi- 

 ment was delayed until they fpawned. The 

 milt of a living carp being taken, and the 

 fluid expreffed into a veiTel, it appeared tena- 

 cious, thickifli, and of a dull white. Many 

 moving corpufcula were feen, but I could not 

 obtain diftincl; vifion until the denfity was di- 

 minifhed by water. Here was a new fcene : 

 the corpufcula were no longer corapofed 6f two 

 parts, a body and an appendage, but a united 

 whle ref e mbling minute Ipheres, and apparently 



foljd, 



(0 J^ly ^5j I'^^s thermometer 77". 



