An Introduction to Practical Histology

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1877 Excerpt: ...latter, the existence of the intravaginal network was demonstrated. For the nerves of tendon Eollett recommends the removal of a small tendon entire, which is then placed in per cent, solution of hydrochloric or nitric acid until it swells into a clear transparent mass. He also recommends a combined action of osmic and nitric acids. The tendon found by him to be specially suitable for the study is that of the musculus sterno-radialis (Cuvier) of the frog. The figures given by this observer of the nerves in tendon, so far as he has followed them, suggest an analogy with those of muscle.1 The terminal bulbs or corpuscles of Krause have been found in the conjunctiva bulbi, the glans penis, the clitoris, and some other parts. Poncet2 has recently demonstrated them very successfully in the conjunctiva of the human eye by the following method: --He injected- per cent. solution of osmic acid under the superior and external part of the con 1 Wien. Akad. Sitzungsb., 1876. s Jlecherches sur la terminaison des Nerfs dans la Conjonctive. Arch, de Phys., tome ii., 1875. junctiva where they are best found, producing an artificial chemosis. A few drops of the same solution were then placed between the eyelids, and the parts left undisturbed for 12 hours, after which time the eyeball was enucleated, and small pieces of the conjunctiva removed by scissors. These were extended on cork by pins, and placed 12 hours in purpurine, 12 hours longer in weak alcohol, then 1 hour in strong alcohol, and finally cleared up in oil of cloves, and preserved in soluble Canada balsam. The nerves were found to terminate in--1, a network with large meshes; 2, Krause's corpuscles; 3, in filaments between the epithelial cells. The memoir of Poncet is otherwise remarkable as af...