70 THE ORIGIN OF LIFE 



kinds of Mould, sometimes in comparatively large 

 masses, and differing in kind from those that were 

 found in the yellow solutions of the previous series. 

 They yielded, however, none of the heaps of brown 

 Fungus-germs, or aggregates of Micrococci, such 

 as were so common in some of the tubes of the 

 latter series, and are shown in Plate 1, Fig. 2, 

 and Plate 2, Fig. 8. A moderate number of 

 Bacteria have also been met with, and in the con- 

 tents of three of these tubes I found, for the first 

 time, a few motile Bacteria. 1 



Moulds have been distinctly less common in the 

 colourless solutions. These have continued to yield 

 Torulae principally, either alone or in association 

 with Bacteria. 



In tube No. 136, for instance, both these kinds 

 of organisms were found; and, in repetition of 

 former trials with the contents of other solutions, 

 I inoculated an ammonic tartrate solution with 

 some of its deposit, then divided the inoculated 

 fluid into two portions, and heated one of the por- 

 tions to 100 C. for one minute. The two flasks 

 were then placed side by side in a warm chamber, 



1 In cases where Bacteria have been cultivated from the tubes 

 in the ammonic tartrate solutions, they have frequently been 

 very active; and Torulse, too, when single and free, have com- 

 monly shown slight but distinct oscillations. 



