THE BEGINNINGS OF LIFE. 



195 



Although some of these observations have, not been 

 recorded with all the details which might have been 

 desired, yet I have satisfied myself that the statements 

 made by Pineau and Pouchet are substantially correct. 



Pineau has given an account of the mode of origin 

 of the microscopic fungus known as Pemcillium glaucum, 

 and also of Monas lens^ in addition to other organisms 

 to which we shall subsequently refer. 



M. Pineau watched the various stages in the evolution 

 of Pemctllium glaucum in the midst of a granular pellicle 

 which formed on an infusion of bread, after it had 



Fio. 51. 

 Mode of Origin of Penicillium. (Pineau.) ( X 400.) 



a. Granular Pellicle. 

 6. First appearance of Germs. 

 c-g. Illustrating their subsequent development into Penicillium. . 



undergone the acid fermentation. Indistinct networks 

 of various sizes, with roundish or slightly polygonal 



O 3 



