xlviii THE BEGINNINGS OF LIFE. 



No. LII. Ammonic Tartrate and Sodic Phosphate 

 Solution, after twenty-four hours showed the faintest opales- 

 cence ; in forty-eight hours there was a bluish-white turbidity, 

 which, in seventy-two hours, had become more marked. 

 When examined microscopically multitudes of Bacteria 

 were found whose movements were very sluggish. On the 

 thirteenth day there was a well-marked whitish turbidity, due 

 to Bacteria and Vibriones, a slight amount of deposit, and a 

 firm pellicle which was found to be composed, almost wholly, 

 of long unjointed Vibriones and unsegmented Leptothrix fila- 

 ments, all of which, when separate, exhibited the most 

 distinct eel-like movements, accompanied by an actual pro- 

 gression from place to place. 



Ammoniac al Solutions, unboiled, and exposed to Air in a 

 Corked Bottle, after Inoculation with a Drop of Fluid con- 

 taining living BACTERIA and TORUL^E. (Temp. 6o-65 F.) 



No. LIII. Ammonic Acetate Solution, after twenty- 

 four hours was faintly opalescent, and in forty-eight hours 

 showed a very slight bluish tint. In seventy-two hours it 

 was in the same state, and, on microscopical examination, 

 the fluid showed no distinct Bacteria or other living things, 

 though there were a number of very minute particles dis- 

 tributed, singly or in small groups, throughout the fluid. 

 On the thirteenth day there was no change in appearance, 

 except that the sediment had somewhat increased in amount. 

 Still, no Bacteria could be found in the fluid or the sedi- 

 ment, only the above-mentioned particles, and a few some- 

 what larger, which resembled very minute Torulce. Amongst 

 the sediment, however, there were two or three very small 

 mycelial tufts of a developing fungus. 



No. LIV. Ammonic Oxalate Solution. On the eighth 

 day the fluid showed a very faint opalescence, though there 

 wa& a well-marked, greyish, flocculent deposit, which was 



