EFFECT OF COPPER SULPHATE. 19 



Effect of various concentrations of copper sulphate upon different forms of algse Cont'd. 



GKROTJIP 1 Continued. 

 SCENEDESMUS QUADRICAUDA (Turp.) Breb. 



EUGLENA VIRIDIS Ehrb: 



SPIROGYRA STRICT A (E. Bot.) Wille. 



GKROTJP 2. 



CONFERVA BOMBYCINUM Ag. 



One part copper sulphate to water, parts 



CLOSTERIUM MONILIFERUM (Bory ) Ehrb. 



SYNURA UVELLA Ehrb. 



