ANNOTATIONS AND ADDITIONS. 47 



Reaumur, on doit etre dispose a admettre que la revivifica- 

 tion n'a dans F animal d'autre condition que Pintegrite de 

 composition et de connexions organiques." In the same 

 way, in the vegetable kingdom, the sporules of cryptogamia, 

 which Kunth compares to the propagation of certain pha?- 

 nogamous plants by buds (bulbillse), retain their germinat- 

 ing power in the highest temperatures. According to the 

 most recent experiments of Payen, the sporules of a minute 

 fungus (Oi'dium aurantiacum), which covers the crumb of 

 bread with a reddish feathery coating, do not lose their 

 power of germination by being exposed for half an hour in 

 closed tubes to a temperature of from 67 to 78 Reaumur 

 (182.75 to 207.5 Pah.), before being strewed on fresh 

 perfectly unspoilt dough. May not the newly discovered 

 monad (Monas prodigiosa), which causes blood-like spots on 

 mealy substances, have been mingled with this fungus ? 



Ehrenberg, in his great work on Infusoria (S. 492-496), 

 has given the most complete history of all the investiga- 

 tions which have taken place on what is called the revivifi- 

 cation of rotiferse. He believes that, in spite of all the 

 means of desiccation employed, the organization-fluid still 

 remains in the apparently dead animal. He contests the 

 hypothesis of "latent life;" death, he says, is not "life 

 latent, but the want of life." 



We have evidence of the diminution, if not of the entire 

 disappearance or suspension of organic functions, in the 

 hybernation or winter sleep both of warm and cold-blooded 

 animals, in the dormice, marmots, sand martins (Hirundo 

 riparia) according to Cuvier (Regue animal, 1829, T. i. p. 



