IV 



THE BEGINNINGS OF LIFE. 



development 1 , never one of spontaneous fission, without 

 which it can have no strict claim to be considered as one of 

 the lowest kinds of living things. 2. The Sarcina met with 

 in ammonic tartrate solutions like that from the stomach 

 has always existed amongst the sedimentary deposits. 3. In 

 other ammonic tartrate solutions in which there has been 

 either no Sarcina of the ordinary description, or only a small 



Fig. a. 



Sarcina and allied products which have a more obviously crystalloid 

 nature from solutions containing Ammonic Tartrate and Sodic 



Phosphate. ( x 600.) 



a, a. Plates partly crystalline and partly amorphous. 

 b t b. Amorphous matter gradually assuming a crystalline form. 



c. More perfect group of such crystals. 



d. Similar separate crystals. 



e. Sarcina from same solution. 



quantity of it, a sedimentary matter has been found, having 

 a very strong general resemblance to Sarcina, though the 

 appearance of this has been such as to make it almost cer- 

 tain that it is a kind of modified crystalline rather than a 



1 Similar processes may be seen during the formation of Rainey's 

 calculi.' See Chap. xii. 



