Latham : Assimilation of Sterigmatocystis 



241 



crop versus 60.6 per cent, gain in the crop grown at the optimal 

 stimulation. 



As was said before, commentators in their reviews have made 

 objection to the work on nitrogen combination by fungi on the 

 ground that the amounts determined by the analysis were too 



♦ 



O o 

 in 'IS 



.so" 



en G 



.0000 

 .0003 

 ,0005 

 .0007 

 .0010 

 -OOI5 



Table II 



Averages of five series, series 6 being omitted 

 J J 



01 U 



si 



5S.6 



.6 



37 

 2.2 



7.5 

 36.1 



t3 



B 



P. 



<*- o 

 o « 



. J3 



01 



209.3 



I.O 



5.6 



1.8 



IO-5 



54-5 



4i 



(« 





;z; 



13-7 



44.5 

 44.6 



48.3 



39-9 

 40.0 



1-1 



c 



be 

 o 



a; 



Ih 



i:T3 



he b£ 



50-7 



59.2 



61.0 

 60.4 



54.8 





.5 G 



'5 



fa« 



M 



H 



209.5 

 183,2 

 185.6 



178.5 

 169.8 



160.2 



13 



r n o t« 



o 



72.2 



45- » 



48.3 

 46.1 



33-9 

 3-9 



I 



a 



o 



H 



260.1 

 60.2 



66.7 

 66.7 



46.2 



Table III 



Grand averages of all series 



lation in terms of 

 I ZnS04 so'ution 



B — A 

 nitrogen fixed in 

 culture solution 

 Mg. 



3f nitrogen fixed 



solution per gram 



of felt 



c 



itrogen in felt 

 Mg. 



of nitrogen per 

 m. of dry felt 



B + C 



itrogen in felt and 



solution 

 Mg. 





Total nitrogen fixed in 



Mg. per pram of 



dry felt 



Stimu 

 norma 



Total 

 each 



.5 



:? 



he 



Tota! n; 



1 



Tota 



0.0000 



413 



150.8 



n-i 



48-3 



195-7 



54-7 



199.2 



-OO03 



—19.7 



—25.4 



45.0 



59.5 



169.0 



25-3 



341 



.0005 



— 12.7 



-13.8 



45-8 



60.9 



174-3 



33-2 



47-3 



.0007 



—19-3 



-24.8 



48.1 



60.7 



166.9 



28.8 



42.9 



.ooro 



— 7-5 



- 10.5 



39-9 



54.8 



169.8 



33-9 



46.2 



.0015 



—36.1 



-54.5 



40.0 



60.3 



160.2 



3-9 



5-9 



small to be due positively to anything but experimental error. 

 Now Puriewitsch's largest analysis gave 18.2 mg. of nitrogen 

 with 9.8 mg. supplied at first, making a gain in fixed nitrogen of 

 8.4 mg. Saida's largest gain was 1.7742 mg. of nitrogen for 

 Aspergillus and 10.536 mg. with a culture of Phoma which was 



