AND ITS RELATION TO ANIMAL LIFE 133 



Lecture on Bacteria, revised by J. B. Balfour, 

 M.D., F.R.S., on p. 64 



" The vegetative process in organisms which 

 use organic compounds for their food must 

 necessarily effect changes in the substrata 

 from which the food is withdrawn. This is 

 especially the case with organisms whose mode 

 of life is of the kind described, and therefore 

 with all that do not contain chlorophyll, in- 

 fusoria, and fungi as well as bacteria. Fungi 

 especially in the narrower sense of the word, 

 sprouting fungi, moulds, etc. The interest 

 attaching to bacteria which are devoid of 

 chlorophyll rests chiefly on their effects on 

 their substratum." 



I do, however, contend that there is suffi- 

 cient evidence to show that a more or less 

 chlorotic or anaemic condition of the plant or 

 animal is a necessary preliminary to the 

 appearance of the fungus. In this connexion 

 there is one other interesting point, namely, 

 the effect of iron on fungi. 



In a Text Book of Plant Diseases caused by 

 Cryptogamic Parasites, Geo. Massee, F.L.S., 



