A quantitative method for maceration of hydra tissue
b'A method is described for the maceration (dissociation) of hydra tissue into single cells. The cells have characteristic morphology such that all basic types \\u2014 epithelial, gland, mucous, interstitial, nematoblast, and nerve \\u2014 can be distinguished. Criteria are given for identifying each cell type by phase contrast microscopy. It is shown that maceration quantitatively recovers cells from hydra tissue.'