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Model, Hydra
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Enlarged approximately 30 times. The anatomy of the hydra is shown in longitudinal section: entoderm, mesoglea, ectoderm, male and female egg-cells, buds and mouth opening. The supplementary model of the body in the region of stomach and intestine is 200X is shown in both cross and longitudinal section. One piece with explanatory notes. 15-1/4"L x 13"W x 18"H.

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