A manual of microscopic mounting with notes on the collection and examination of objects
John H. Martin
Paperback
(RareBooksClub.com, Sept. 13, 2013)
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ...I give the method of obtaining them. Make a moderately thick paste with flour and water, stir and beat up daily with a spoon to prevent any growth of moulds, when, if the weather is moderately warm, the young entozoa will be found, sometimes in large quantites. To observe them, place a small piece of paste containing them in a drop of water in an ordinary animalcule box, or between the two cells of the gas-cell (Figs. 9 and 10, Chapter I., page 13). These animals may be kept for years if a little fresh paste is added occasionally. 94. Anoplura.--An order of insects, parasitic, upon birds and animals, generally known as lice. These insects may be treated in a similar manner to the acari or mites, especially if they are of a small species; if 48347 larger, as in the case of the parasite on the pig, human, &c, it is better to treat them with potass as described for small insects (see Chapter III., page 73), and mount in balsam or dammar, or they may be washed in acetic acid, and mounted in glycerine. 95. Antennce of Insects.--These organs require but little dissection. It generally is sufficient to cut them off from the head of the insect with a pair of sharppointed scissors, and if thick remove them, to be softened in the potass, washed, pressed, dry, and mounted in balsam in the ordinary manner; if not thick enough to require this, they must be soaked for a short time in turpentine, which will render them transparent enough to be observed, or in some cases they may be mounted dry transparent, as, for instance, the antennae of the common gnat. Some of the antennae of the larger beetles only show well when mounted in a dry opaque cell. Many of the small antennae show well when put up in a cell in a suitable fluid (Recipes 3, 12,'52,55,...