On the Preservation of Animal Substances (Paperback)


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. 1852 edition. Excerpt: ...this purpose a good, and water-proof cement is necessary. Canada balsam is too brittle; gum mastic is equally brittle and difficult to use, and I could not for some years find anything equal in toughness and durability to my own composition--gold size and lamp black--and I have now in my possession cells containing wet preparations cemented with it 14 years ago, every portion of which is perfectly sound. It is, however, in every respect, vastly inferior to the marine glue already alluded to. In the year 1842 my attention was directed to this composition by the newspaper accounts of experiments made with it at the Royal dockyards at Woolwich. I consulted the patentee, Mr. Jeffery, and desired to know if it could be applied as a cement to glass; of this he knew nothing, but gave me some to try, and general directions how to use it. It failed; and for some months continued to fail, until the inventor made some specially for my use at the College of Surgeons, with which I had the most complete success. As made for general use the marine glue consists of different degrees of hardness, distinguished by numbers, from one, downwards; the particular composition made for me agreed nearly with the ordinary "No. 4," but as in addition to caoutchouc and shell-lac--the staple ingredients of the marine glue--this contained another and most important material, as applied to glass, it was agreed to call it "No. 4, G. K.;" subsequently the same valuable ingredient enters into the composition of every form of marine glue, so that "No. 4" is now a sufficient description of it. Another and very beautiful preparation of the marine glue has been made in this country, suggested by Dr. P. B. Goddard of Philadelphia. It consists of caoutchouc...

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Product Description

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. 1852 edition. Excerpt: ...this purpose a good, and water-proof cement is necessary. Canada balsam is too brittle; gum mastic is equally brittle and difficult to use, and I could not for some years find anything equal in toughness and durability to my own composition--gold size and lamp black--and I have now in my possession cells containing wet preparations cemented with it 14 years ago, every portion of which is perfectly sound. It is, however, in every respect, vastly inferior to the marine glue already alluded to. In the year 1842 my attention was directed to this composition by the newspaper accounts of experiments made with it at the Royal dockyards at Woolwich. I consulted the patentee, Mr. Jeffery, and desired to know if it could be applied as a cement to glass; of this he knew nothing, but gave me some to try, and general directions how to use it. It failed; and for some months continued to fail, until the inventor made some specially for my use at the College of Surgeons, with which I had the most complete success. As made for general use the marine glue consists of different degrees of hardness, distinguished by numbers, from one, downwards; the particular composition made for me agreed nearly with the ordinary "No. 4," but as in addition to caoutchouc and shell-lac--the staple ingredients of the marine glue--this contained another and most important material, as applied to glass, it was agreed to call it "No. 4, G. K.;" subsequently the same valuable ingredient enters into the composition of every form of marine glue, so that "No. 4" is now a sufficient description of it. Another and very beautiful preparation of the marine glue has been made in this country, suggested by Dr. P. B. Goddard of Philadelphia. It consists of caoutchouc...

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Product Details

General

Imprint

Rarebooksclub.com

Country of origin

United States

Release date

July 2012

Availability

Supplier out of stock. If you add this item to your wish list we will let you know when it becomes available.

First published

July 2012

Authors

Dimensions

246 x 189 x 1mm (L x W x T)

Format

Paperback - Trade

Pages

18

ISBN-13

978-1-153-95726-7

Barcode

9781153957267

Categories

LSN

1-153-95726-4



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