Abstract
A mathematical analysis of the effects of chloroform on the production of carbon dioxide by living Ulva, killed Ulva, and unsaturated organic acids indicates that the same process is taking place in all three cases. On the basis of this interpretation it is reasonable to conclude that the action of chloroform on the oxidative mechanism of the cell is chemical in nature and that it acts either by catalysis or by the formation of a loose compound with some portion of the system.