BY R. GREIG-SMITH. 



541 



of soil to 100 c.c. of water). The bottles were kept at 28°, and 

 water was added occasionally to maintain the original weight. 



There is a loss of 14% of paraffin occasioned by Bac. prodigiosus, 

 and of 49% by the soil-organisms, in about a month at 28°. The 

 decomposition appears to be uninfluenced by the nature of the 

 nitrogenous matter. 



