The Students' Manual of Histology: For the Use of Students, Practitioners and Microscopists

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G.S. Davis, 1882 - Histology - 290 pages
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Page 54 - I may even go further, and say that the average of all the measurements of human blood I have made is rather larger than the average of all the measurements of dog's blood. But it is also true that it is not rare to find specimens of dog's blood in which the corpuscles range so large that their average size is larger than that of many samples of human blood.
Page 24 - The ferrocyanide of potassium is to be dissolved in one ounce of the water, and the tincture of sesquichloride of iron added to another ounce. These solutions should be mixed together very gradually, and well shaken in a bottle. The iron being added to the solution of the ferrocyanide of potassium. When thoroughly mixed, these solutions should produce a dark blue mixture, in which no precipitate or flocculi are observable. Next, the naphtha is to be mixed with the spirit, and the glycerine and the...
Page 25 - By agitation, and with the aid of the heat of a spirit-lamp, the carmine is soon dissolved. The ammoniacal solution is to be boiled for a few seconds and then allowed to cool. After the lapse of an hour, much of the excess of ammonia will have escaped. The glycerine and water may then be added and the whole passed through a filter, or allowed to...
Page 24 - Ammonia, a few drops. Mix the carmine with a few drops of water, and when well incorporated, add about five drops of liquor ammonia;. To this dark red solution, about half an ounce of the glycerine is to be added, and the whole well shaken in a bottle. Next, very gradually, pour in the acid glycerine, frequently shaking the bottle during admixture. Test the mixture with blue litmus paper, and if not of a very decidedly...
Page 236 - Jacobsen's layer. 3. The external limiting membrane. 4. The outer nuclear or granular layer. 5. The outer molecular or reticular layer. 6. The inner nuclear or granular layer. 7. The inner molecular or reticular layer. 8. The layer of ganglion cells. 9. The layer of nerve fibers.
Page 50 - He uses a saturated solution of corrosive sublimate in 96 per cent. alcohol, and into fifty volumes of this solution, one of blood is to be rapidly diffused. By this means the coloring matter of the corpuscle is.
Page 235 - The retina is usually divided into eight layers : — 1. The layer of nerve-fibers. 2. The layer of ganglionic cells. 3. The inner molecular layer. 4. The inner nuclear layer. 5. The outer molecular layer. 6. The outer nuclear layer. 7. The layer of rods and cones. 8. The hexagonal pigment-layer. The first layer consists of neuraxons from the ganglionic cells of the second layer. The second layer consists of a lot of multipolar nerve-cells, and their neuraxons run inward to form most of the fibers...
Page 24 - ... These solutions should be mixed together very gradually and well shaken in a bottle, — the iron being added to the solution of the ferrocyanide of potassium.
Page 220 - It consists of three parts — the Vestibule, the Semicircular Canals, and the Cochlea.
Page 208 - That this elliptical structure has its analogue in the Mammalian spermatozoon; in the one case the head is drawn out as a long pointed process, in the other it is of a globular form, and surrounds the elliptical structure. 4thly. That the motive power lies, in a great measure, in the filament and the membrane attaching it to the body. The...

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