462 THE BEGINNINGS OF LIFE. 



pellicle (which had been mounted on two microscope- 

 slips, and at once protected by surrounding the covering 

 glasses with cement)., revealed five spherical or ovoid 

 spores, the average size of which was about -^^W in 

 diameter. They all possessed a more or less perfectly- 



8 8 



FIG. 36. 



Spore-like bodies, and figure-of-8 particles, from a solution of Ammonic 

 Carbonate and Sodic Phosphate. ( x 600.) 



formed nucleus, and all showed a most distinct doubly- 

 contoured wall. One of the smaller of them showed 

 that it had reached a stage when it was about to 

 germinate. In addition, a small mass of Sarcina-like 

 material was seen, which was not very distinctly de- 

 fined, owing to its being still in a somewhat embry- 

 onic stage. 



Experiment x. A solution containing eight grains 

 of ammonic carbonate and three grains of sodic 

 phosphate. 



The vacuum having been ascertained to be well 

 preserved, the tube was opened in the beginning of 

 the eleventh week. There was no pellicle or scum 

 of any kind, and no turbidity, though there was a very 

 small amount of deposit at the bottom of the vessel. 

 The reaction of the fluid was decidedly though not 



