The insect-catching powers of those curious plants, the Fly-traps (Dionæ), the Sun-dews (Drosera) and the Trumpet-leaves (Sarracenia) have always attracted the attention of the curious, but renewed interest has been alvakened in them by virtue of the interesting experiments and observations on their structure, habit and function, that have lately been recorded, and especially by the summing up of these observations in some charming papers by Prof. Asa Gray, which recently appeared in The Nation and The New York Tribune, under the title of “Insectivorous Plants.”