Knowledo^e. 



W'itli which is incorporated Ilardwickc's Science Gossip, ,uid the IMustrated Scientific News. 



A Monthly Record of Science. 



Conducted by Wilfred Mark Wrbb. F.L.S.. and E. S. Grew. M.A. 



septi:mi5i:r, 1912. 

 LIFE WITHOUT MICROBES. 



By F. P. MANN. 



Seeing that microbes are always found to accompany could li\c when frt'c from such .i^crnis. It was very 

 the different manifestations of life, it was, in fact, difficult to throw any light upon this very imjiortant 



FlGURli 357. M. Michel Cohendy's .Apparatus. 



supposed that thev were even a necessary condition point, as what was needed was to be able to raise an 

 for the existence 'of human beings and animals of animal and allow it to grow under conditions in 

 different degrees. Scientific men have hitherto been which no microbes could reach it. M. Michel 

 of the opinion that life, without microbes would be Cohendy, of the Pasteur Institute of Pans, under- 

 impossible, at least, for the higher animals, even took to solve the problem by raising live chickens in 

 though recent researches showed that some insects an enclosed space which was quite free from 



