Abstract
Summary
1. An ichthyometric study of the effects of cobra venom and morphine on goldfish revealed a marked difference between the two drugs, morphine in certain concentrations depressing and killing the fish in 12 hours while both crude cobra venom and cobra neurotoxin solutions, far from inducing death in 24 hours, depressed but little and usually stimulated goldfish activity. 2. An ichthyometric comparison of cobra venom solutions with solutions of saponin (Merck), and digitonin reveals that while the saponins are extremely toxic for goldfish, cobra venom is not, a finding which discountenances the sapotoxin hypothesis with regard to its chemistry.
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