‘ANIMAL REPRODUCTIONS. 311 
T iiot refle@ that the learned will better compre- 
hend the import, on perufing the letters them- 
- felves. Sig, Caldani obferves, that only four of 
his decollated {nails were alive 27 September 
1782. He afterwards wrote to me, 19 April 
1783: © Of the four remaining {nails, three died 
‘ during the late cold: The fourth, which was 
* the largeft of the whole, has for four nae fhewn 
_ «mea very fine head.’ 
Sig. Girar di obferves, that the moment the 
horns, particularly the larger, are divided, a 
ftream of cerulean fluid efcapes. Both he and 
{ explain this phenomenon, but we difagree in 
the explanation. In my memoir, | have fuppofed 
the fluid firft generated in the glandular parts of 
the horns: he, on the contrary, thinks it is the 
blood of the animal, or a fluid analogous, that 
fpouts from the divided horn. On better ex- 
amination of the fat, it appears that he is right 
and I am wrong. Within the horns, there is 
truly a large veflel, which even extends over part 
of the head, full of that light cerulean fluid; 
and, when the horns are cut afunder, it becomes 
flaceid and almoft difappears, by difcharging the 
fluid whofe colour renders it vifible. 
-Paffing threugh Parma laft November, I had 
the pleafure of embracing my molt efteemed 
friend in his own houfe. He fhewed me feverai 
Anails mutilated during the preceding fpring, and 
Ua the 
