ass INDEX. 
The duft of mould is the feed of the plant Page 207 
Tt is not injured by more than boiling heat - 209 
Grain kept 23 years has vegetated - - 210 
Mould grows in veffels hermetically fealed, but not 
in vacuo - - - - 213 
Does all mould belong to the vegetable kingdom? 214 
ANIMAL REPRODUCTIONS. 
Defcription of the head of the fnail - - 219 
What induced the author to think it would be repro- 
duced - - - - - 224 
Reproduétion of the horns - - - 226 
To obtain reproduction 61° of heat are requifite 229 
Half the head is reproduced - - in! 
Reproduétion of the whole head - - 238 
Reflections on animal reproductions - - 245 
Experiments controverting the reproductions of fnails 259 
Experiments corroborating the reproduction - 263 
Letter from Sig. Scarella - - - 270 
— from Schaeffer - ° - - 272 
from Sig. Caldani agit = - 276 
from Sig. Pratolongo - - - . 280 
— from Sig. Girardi - 7 - 284 
Defcription of the fnail - - - - 286. 
Its vifion is feeble - . - 294 
A cerulean fluid is the blood of thefe animals - 300 
Reflections on the various experiments on reproduc- 
tion - 2 - o oe 2° 308 
Reprodudtion 
