The Relation Between Poison Concentration and Survival Time of Roaches Injected with Sodium and Potassium Cyanides and Potassium Ferricyanide

In preceding papers (3, 4, 5) the authors described and analyzed concentration-survival time curves pertaining to roaches injected with arsenicals. The present paper is a study of the relationship between concentration of poison and survival time of large nymphs of the American roach (Periplaneta americana (L.)) injected quantitatively with sodium cyanide (NaCN) (experiments 1 A, IB, 1 C), potassium cyanide (KCN) (experiment 2), and potassium ferricyanide (K3Fe(CN)6) (experiment 3).