Til 



470 



THE BEGINNINGS OF LIFE. 



amount of a light flocculent 



these flasks, the mutton infu- 



main, into ammonia and carbonic 



Seeing that the 



organic matter was so 



down. But on openin 

 sion in each case presented a very strongly ammoniacal 

 and otherwise unpleasant odour, arid was also alkaline 

 in reaction. The organic compounds had, therefore, 



+ 



been differently decomposed in these cases — in the hay 

 and turnip infusions more or less pure carbon had 

 been liberated, whilst the mutton solution probably 



broke up, in the 



anhydride. 



thoroughly destroyed in these infusions, there was not 



much chance that any mere shreds of it should 

 have escaped uninjured in the tubes which contained 

 various saline solutions. And in those experiments 

 in which the tubes and their solutions were raised to 

 the temperature of ^6^Y^ all the disadvantages were 

 further augmented by the extreme amount of corrosion 

 of the tubes, which took place even when the hardest 



\ 



Bohemian glass was employed. ' 



Confining ourselves, therefore, to a consideration of 

 the experiments in which the closed flasks containing 

 the experimental fluids have been heated to tempera- 



ing from 27o^-307''F, the results arrived at 

 must be looked at from two or three different points 

 of view. 



charred to a similar extent. Infusions of mutton, 

 however, were scarcely altered in colour by this tempc- ^^'^ .^^g peri' 



rature or by the higher one of 464° F, and only a small 



precipitate was thrown 



have 



bc< 



elves 



high 



1 



be a 



Thi 



difficult; 



jii hesitate to; 



iipally on ac 

 organisms ( 



ry parent% 

 I very simplest 

 indisposed 

 which I h, 

 ipendent orif^i 

 if upon this 



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difficulties c 



*"gli considei. 

 ^feader will 

 ^^ and XV, 



pt. 



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