Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 399
Fig. 4. Am(eba shown in Two op the ManyIrregular Shapes it Assumes. {AfterHowes.) The clear space within it is a contractile vesicle.The dark body is the nucleus. In the right-hand figure there is shown a particle of food,passing through the external surface. The Organic World 365 Lastly,…
Children's literature
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