. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 10 EVENINGS AT THE MICROSCOPE. long, pointed, overlapping scales, about ten of which form a complete ring, or whorl, as it is called. 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 (b), by moving the stage of the microscope, by-and-by it swells and rapidly increases in thickness ; the imbrications are scarcely
. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 10 EVENINGS AT THE MICROSCOPE. long, pointed, overlapping scales, about ten of which form a complete ring, or whorl, as it is called. 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 (b), by moving the stage of the microscope, by-and-by it swells and rapidly increases in thickness ; the imbrications are scarcely perceptible; while the pith-cells have greatly augmented in number and in breadth. These are ar- ranged in confused 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, pre- sents transverse wavy lines of imbrication scarcely pro- jecting. The hair of the common Mouse is a pretty and inter- esting object. In the larger speci- mens the fibrous portion is reduced almost to nothing. The imbrica- tions project very little, but care- ful observation reveals slanting lines proceeding from the "teeth;" which show that the whole surface is clothed withlarge pointed scales, which are very thin, and lie close. The pith consists of large flattened cells, arranged thus: one row passes up through the centre, and other similar ones are set in a circle around it, so that a longitudi- nal section would show three paral- lel rows. These cells are translucent, and some of them. HAIR OP 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. London : Society for Pro
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Keywords: ., bookce, bookdecade1870, booksubjectmicroscopy, booksubjectzoology
