l3^ SEMlNAt VERMICtrtf. Jft- 



I likve found nothing but faliva preferve theif 

 motion ; and it may be ufed indiiFerently, either 

 from the mouth, or when cold ; therefore I have 

 often taken advantage of it for continuing my 

 obfervations. Thefe ovular corpufcula, and th^ 

 phenomena exhibited, were exactly the fame as 

 in the former obfervation. 



When the drop dries up, all, without excep- 

 troll, become motionlefs ; and as it dries firft at 

 the circumference, that is, where thinner, and 

 advances to the centre, thofe firft becoming mo* 

 tionlefs are at the edge, then thofe of the interior, 

 and, laftly, thofe in the centre. The corpufcula 

 do not recover on putting a drop of faliva, or fe- 

 minal fluid, on that which is dried, though hu- 

 midity continues long. In this obfervation, they 

 became motionlefs fooner. In fourteen minutes 

 they were languid ; in three quarters of an hour, 

 there was complete repofe. While a remnant of 

 ofcillation continued, progreffion had ended 5 

 and when both motions had ceafed, moft of the 

 appendages remained extended in a ftraight line. 



Semen taken from a dead human body was 

 chiefly coagulated, 18 February (i). It was 

 inhabited by the uiual corpufcula. In one of the 

 preceding obfervations, it appeared to me that 

 there were fome larger among the reft. I appre- 

 hended 



( I ) Thermometer 49'. 



