1 



complete 



^^d flash to 

 ^) /or four 



iperatun of 



I 



ivhich had 



It had 



■e. 



here was a 



ing a turnip 

 anisms within 

 f mere baked 

 1 had in feet 



:*. xviii.) fe- 

 )weredbytte 



wing ?^«^*' 

 ding tenea* 



•ield my"** 

 interesj«S; 



,re P' f 





\ 



\ 



THE BEGINNINGS OF LIFE. 



457 



\ 



4 



blackish-brown deposit of charred matter^ which^ after 

 it had thoroughly settled, was about equal to one-twelfth 

 of the bulk of the fluid. 



The flask was opened at the end of the eighth week^ 

 when the vacuum was found to be well preserved. The 

 odour of the fluid was for the most part that of baked 

 turnip, and its reaction was acid. The deposit was 

 composed of amorphous granules^ and also of a mul- 

 titude of reddish or claret-coloured spherules of various 



organisms of any kind could be dis- 



sizes, but no 



covered. 



Exj^erment r. An infusion of turnip rendered slightly 

 alkaline by the addition of dilute liquor ammonix, was 

 affected in almost precisely the same way as in tlie last 

 experiment. 



same 



after the same interval. The deposit, in its micro- 

 scopical characters, resembled that found in the last 



+ 



experiment, and there was a similar absence of all 



organisms ^ 



Experiment s. A tube containing an unaltered infusion 

 of turnip was opened at the end of the twelfth day. 



received from Dr. Frankland, the fluid had 



When 



been changed to a decided but light brown colour, and 

 there was some quantity of a blackish-brown granular 



^ Considering the results which were obtained in Exps, a and g, I 

 think that a turnip infusion neutralized by liquor potassiB rather than 

 liquor ammonias, is one of the most favourable combinations for producing 

 organisms after exposure to high temperatures. 



