. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. 10 EVENINGS AT THE MICEOSCOPE. and examine it near the base, we see that it is very slender, transparent, and colourless, covered with strongly-marked imbrications, which are not obtuse teeth, but long, pointed, overlapping scales, about ten of which complete a whorl. The fibrous portion is moderately thick; inclosing a wide pith of roundish cells, set in two rows, that allow the rays of light to be transmitted through their central parts. As we trace th
. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. 10 EVENINGS AT THE MICEOSCOPE. and examine it near the base, we see that it is very slender, transparent, and colourless, covered with strongly-marked imbrications, which are not obtuse teeth, but long, pointed, overlapping scales, about ten of which complete a whorl. The fibrous portion is moderately thick; inclosing a wide pith of roundish cells, set in two rows, that allow the rays of light to be transmitted through their central parts. As we trace the hair upwards, by moving the stage of the microscope, b}'' and by it swells and rapidly in- creases in thickness; the imbrications are scarcely per- ceptible ; while the pith- cells have greatly augment- ed in number and in breadth. These are arranged in con- fused, close-set, transverse rows, and are nearly opaque. Still tracing up the same hair, as we approach the tip, the bark and fibrous part become very thin ; the cells are fewer and fewer till they cease altogether, and a long slender point, of a clear yellow tinge, without cells, presents transverse wavy lines of imbri- cation scarcelj'' projecting. The hair of the common Mouse is a pretty and in- teresting object. In the larger specimens the fibrous portion is reduced almost to nothing. The imbrications project very little, but careful observation reveals slant- ing lines proceeding from the " teeth;" which show that the whole surface is clothed with long pointed. HAIE OF 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 Gosse, Philip Henry, 1810-1888. New York, D. Appleton
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