The microscope and microscopical technology : a textbook for physicians and students / by Heinrich Frey ; translated from the German and edited by George R. Cutter, from the fourth and last German edition.

Date:
1872
Catalogue details

Licence: Public Domain Mark

Credit: The microscope and microscopical technology : a textbook for physicians and students / by Heinrich Frey ; translated from the German and edited by George R. Cutter, from the fourth and last German edition. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    arrangement of the mucons membrane, the glands of Bowman and the coarse of the nerves, one may employ, together with the Miiller's fluid, higher degrees of concentration of chromic acid and chromate of potash, and subsequently examine with glycerine, acetic acid, etc. Moleschott's so-called strong acetic- acid mixture (p. 142) has also been especially recommended by Balogh. Strongly hardened objects, as well as the preparations of the remaining portions of the nasal mucous membrane, one should attempt to mount in glycerine. The olfactory cells and the cylindrical epithelium lying betwen them may be still more suitably preserved iu Miillei-'s fluid diluted with an equal quan- tity of water. 4. The organ of vision, from its greater complication, re- quires a more detailed discussion. The eyelids, with the cutis accompanying them, their connec- tive-tissue so-called tarsal cartilage, and the embedded Meibo- mian glands, which in their form remind one of those of Bow- man in the olfactory organ, as well as the conjunctiva of their posterior surface and of the eyeball, together with the epithelial covering which clothes it, do not require discussion. Their tissues are to be examined in accordance with previous direc- tions. The Meibomian glands may be recognized with facility, in their coarser relations, in the eyelids of small mammalial ani- mals rendered transparent by means of alkalies or by immersion in vinegar; fine sections from the dried organ serve for the investigation of the finer structure. The lachrymal glands are to be examined in the same manner as other racemose glands. The conjunctiva of the eye (frequently a lymphoid infiltrated connective tissue) contains throughout the entire line of transi- tion numerous racemose mucous glands, while in the conjunctiva of the eyeball (the portion surrounding the cornea) of the rumi- nautia, coil-shaped glands, quite similar to those of the skin, have been discovered (Manz). Maceration in dilute acetic acid or pyroligneous acid will make them readily visible. For the recognition of the peculiar nerve terminations in the Krause's knobs (fig. 223), the fresh, still warm eye of one of our slaughter- house animals may be used. The conjunctiva is to be removed