14 BACTERIOLOGY FOR NURSES 



Water 85.45% 



Proteins 10.33% 



Fatty substances 7 % 



Ash 1.75% 



Residue 1.57+% 



Sulphur, potassium, calcium, magnesium, phos- 

 phoric acid, iron, and silica are found in varying 

 amounts. 



.QeUnlgse^ the predominant element in the higher 

 forms of plants, Js__^,^sea^_,^ii2i__bactgria, and the 

 nature of the protein substances of bacteria are 

 little understood. 



