. The cell in development and inheritance. Cells. X b Fig. I. — A portion of the epidermis of a larval salamander (Amblystoma) as seen in slightly oblique horizontal section, enlarged 550 diameters. Most of the cells are polygonal in form, con- tain large nuclei, and are connected by delicate protoplasmic bridges. Above jc is a branched, dark pigment-cell that has crept up from the deeper layers and lies between the epidermal cells. Three of the latter are undergoing division, the earliest stage {spireme') at a, a. later stage (miiotic figure in the anaphase) at 6, showing the chromosomes, and
. The cell in development and inheritance. Cells. X b Fig. I. — A portion of the epidermis of a larval salamander (Amblystoma) as seen in slightly oblique horizontal section, enlarged 550 diameters. Most of the cells are polygonal in form, con- tain large nuclei, and are connected by delicate protoplasmic bridges. Above jc is a branched, dark pigment-cell that has crept up from the deeper layers and lies between the epidermal cells. Three of the latter are undergoing division, the earliest stage {spireme') at a, a. later stage (miiotic figure in the anaphase) at 6, showing the chromosomes, and a final stage (telophase), showing fission of the cell-body, to the right. anatomy has shown us the nature of the material on which it has operated, demonstrating that the obvious characters of plants and animals are but varying expressions of a subtle interior organization common to all. In its broader outlines the nature of this organiza- tion is now accurately determined; and the "cell-theory," by which it is formulated, is, therefore, no longer of an inferential or hypo-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcells, bookyear1911
