. Boys and girls in biology : or, Simple studies of the lower forms of life. Biology. THE FUNGUS, OR COLORLESS PLANT. 15 long, and divide it into three thousand equal pieces, each piece would be the size of one of these little solid bodies in the yeast. Some of them are even four times smaller—regular little Tom Thumbs! Though they are solid, yet we can see through them, just as we can see through glass, hence they are called transpar- ent. Now you see why the yeast looks like a fluid, be- cause these bodies are so small and so clear, or transpar- ent. Next I want you to notice their shape; th
. Boys and girls in biology : or, Simple studies of the lower forms of life. Biology. THE FUNGUS, OR COLORLESS PLANT. 15 long, and divide it into three thousand equal pieces, each piece would be the size of one of these little solid bodies in the yeast. Some of them are even four times smaller—regular little Tom Thumbs! Though they are solid, yet we can see through them, just as we can see through glass, hence they are called transpar- ent. Now you see why the yeast looks like a fluid, be- cause these bodies are so small and so clear, or transpar- ent. Next I want you to notice their shape; they are always round, some of them not as round as your balls, more like a lemon; but none of them are square like a block, or flat like a three-cent piece. The cover of each one is double, that is, it has an outside and an inside, just as your ball-covers have an outer and an inner surface. When you look through the microscope, these two sur- faces look like two round lines—one within the other (Fig. 6). Inside these lines you will notice something Fig. 6. Fig. 7. Fig. which looks like little grains (Fig. 7), and this whole cover, with all that is inside of it, is called a cell. Now you must learn of what these cells are made. First, there is the outside part which is like a bag, or sac,. 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 Stevenson, Sarah Hackett, 1843-1909; Huxley, Thomas Henry, 1825-1895. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbiology, bookyear1875
