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The Midland Naturalist Volume 1-2; Journal of the Midland Union of Natural History Societies with Which Is Incorporated the Entire Transactions of the Birmingham Natural History and Microscopical Society (Paperback) Loot Price: R971 Discovery Miles 9 710
The Midland Naturalist Volume 1-2; Journal of the Midland Union of Natural History Societies with Which Is Incorporated the...
The Midland Naturalist Volume 1-2; Journal of the Midland Union of Natural History Societies with Which Is Incorporated the...

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The Midland Naturalist Volume 1-2; Journal of the Midland Union of Natural History Societies with Which Is Incorporated the Entire Transactions of the Birmingham Natural History and Microscopical Society (Paperback)

Midland Union of Societies

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Loot Price R971 Discovery Miles 9 710

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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. 1878 Excerpt: ...accidental accumulation of old material (such as may take place at the edges of a sieve) is prevented. The mesh should be as fine as will permit the drainage of the moisture. When the muslin, with its light burden, is dry, the contents may be placed upon a slate, and any organisms can be readily picked off. The process described should be repeated until no scum will rise. It is possible that when a clay has failed to yield any more " floatinga," after a second drying it may produce some. If the clay under examination be scarce, and a supply not readily obtainable, the water should be poured off as soon as all the " floatings " have been collected. The clay remaining at the bottom of the dish should again be dried, and the scum, if it chance to yield any, again collected. When all the " floatings " have been obtained, the clay itself should be washed. This is effected by pouring water upon it, stirring it, and then, after giving a few moments to permit the heavier material to fall, pouring off the water; and repeating the process until the fresh water is not at all mudded by the stirring of the material that is left. Abundance of water should be freely used; and generally a great many separate washings are required, but at last, if the clay has been really dry at the outset, the fine mud will disappear. The remaining material will consist of grains of sand and pieces of gravel, together with such organisms as would not float; and must be dried for examination. li the method described be carefully pursued, nothing ought to escape except the finely comminuted mud; and the observer ought to have every organism (the Diatomacem being of course excepted) preserved either in the " floatings " or the "washings." The ...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: March 2012
First published: March 2012
Authors: Midland Union of Societies
Dimensions: 246 x 189 x 19mm (L x W x T)
Format: Paperback - Trade
Pages: 368
ISBN-13: 978-1-130-01996-4
Barcode: 9781130019964
Categories: Books
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LSN: 1-130-01996-9

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