Books with title The Microscope

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 edition. Excerpt: ...distinction of parts. In the body of such a creature even the highest available powers of the microscope reveal nothing more than a fairly uniform network of material... the intervals of th& meshwork being filled, now with a fluid, now with a more solid substance or with a finer and more delicate network, and minute particles or granules of variable size... Analysis with various staining and other reagents leads to the conclusion that the substance of the network is of a different character from the substance filling up the meshes. Similar analysis shows that at times the bars or films of the network are not homogeneous, but composed of different kinds of stuffs..." From this the reader sees that the author contradicts himself. If there is no visibledistinction of parts as he at firsts declares, why does he then call attention to the differences in composition and even to the different parts composing the cell of the Amoeba? Precisely because he cannot get over the idea that the cell is made of different stuffs as he calls it, and that there are parts in it which not only differ in composition but in appearance; in a word, the cell is not a homogenous substance but is composed of parts, in other words, it possesses structure. But in bringing together what is known of the cell it is not my purpose to enter into controversy; I therefore leave the reader free to hold his own opinions. I will state the thesis of Carnoy in his own worda, and follow him as closely as possible in its exposition and demonstration. Prof Carnoy maintains that, " Cells are elementary organisms or individualities of organized beings," and that the cell is "a structured and living mass of protoplasm surrounded by a membrane and containing a...