ORIGIN OF LO WEST ORGANISMS. 83 



when, on microscopical examination, there were found 

 amongst the granular flakes of the deposit, Torulce. of 

 several varieties of size and shape. Many were spherical, 

 others ovoid, or having an elongated oat-like shape : 

 some were of the ordinary colour, and others were 

 brownish in tint. The variety was most striking. No 

 Bacteria were seen, though there were multitudes of 

 active particles which seemed to differ from the minute 

 spherules of undissolved carbolic acid. 



Fluids (in vacua) boiled for five minutes , and Flasks Sealed 



during Ebullition. 



No. XLIV. Turnip Infusion, in seventy-two hourL. 

 showed a slight turbidity, which gradually increased. 

 On the eighth day there was a considerable quantity of 

 flake-like sediment, and some amount of general tui 

 bidity. On the thirteenth day the vacuum was found 

 to be still partly preserved. When the flask was 

 opened the fluid was perceived to have a foetid odoui, 

 and an acid re-action ; and, on microscopical examina- 

 tion, multitudes of Bacteria and Vibriones were seen. 

 In the flake-like aggregations also (made up almost 

 wholly of these organisms) there were a number of large 

 thick-walled spores ; some already formed, and others 

 in process of formation by coalescence. 



No. XLV. Turnip Infusion + ^ P art of Carbolic 

 Acid showed no increase of turbidity * for the thirteen 

 days during which it was kept under observation. 

 Before the flask was opened it was ascertained that the 

 vacuum was well preserved. The odour of the fluid 



This fluid was whitish, and somewhat opaque, from the first. 



G 2 



