1903.] with especial Reference to its Nitrogenous Metabolism. 473 



Tables VII (a) and (b). — Showing increased Nitrogen Assimilation 

 when Glucose is present in the Culture Liquid, and the Kesult of 

 Centrifugalisation Experiments in. the latter case. 



Table VII (a).— Culture in Solution " A." Started August 5, 1902. 



No. of analysis. 



Date of 

 analysis. 





Control. 



Culture of 

 Chlorella 

 pyrenoidosa. 



Per cent, 

 nitrogen. 



1, 



Per cent, 

 nitrogen. 



1 



5.8.1902.' 



Free ammonia 

 Albuminoid- 

 ammonia 

 Nitrites and 



nitrates 

 Total nitrogen 

 (by addition) 



-00268 

 -00012 (?) 



o-oo 



-00280 





2 



19.11.1902. 



Free ammonia 

 Albuminoid 



ammonia 

 Nitrites and 



nitrates 

 Total nitrogen 



0-C0221 

 -00039 



o-oo 



0-00260 



0-00166 

 -00091 



o-oo 



-C0257 



