240 



THE ACTINOMYCETES, Vol. I 





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o 



u 



V 



60 



40 



>2 20 



3 



k: 



r 



H\ 



r 



mn 



I 



I 





i 



n Solution n vSan 



II 



<y ,N A/Atuf-l ;na rer/a ^ 



<N/n Solution medium 



Figure 93. Rate of decomposition of various hemicellulose.s by actiiiomycetes in different media, in 

 6 weeks (Reproduced from: WaLsman, S. A. and Diehm, R. A. Soil Sci. 32: 115, 1931). 



18 28 



DAYS OF INCUBATION 



42 



Figure 94. Decompo.sition of xylan (Repro- 

 duced from: Waksman, S. A. and Diehm, R. A. Soil 

 Sci., 32: 113, 1931). 



Table 73 



Influence of rye straw {1 per cent) upon the 



development of fungi and actinomycetes in 



various soils after 10 days (Waksman 



and Starkey) 



