A Manual of Photographic Chemistry, Theoretical and Practical (Classic Reprint) - Couverture souple

T. Frederick Hardwich

Couverture souple

ISBN 10 : 1330672003 ISBN 13 : 9781330672006

Editeur : Forgotten Books, 2018

Synopsis

The digital edition of all books may be viewed on our website before purchase. Excerpt from A Manual of Photographic Chemistry, Theoretical and Practical (Classic Reprint)



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A propos du livre

Présentation de l'éditeur

Since the publication of the previous editions of this Manual, two changes of importance have occurred ;the nomenclature and atomic weights of chemical compounds have to a great extent been altered, and the collodion process has, especially in England, been largely supplanted by gelatine emulsion. It has, however, seemed judicious to the Editor of this edition neither to entirely discard the old nomenclature in favor of the new, nor to assume the collodion process to be defunct. For while the chemist of the present day knows that to adduce the case of a familiar body the substance expressed by formula Nag SgO s+S A q. is Thio-S ulphate of Soda, there is scarcely one among thirty photographers or dealers in photographic chemicals who is aware that this is the modern term to express Hyposulphite of Soda. Hence a work, intended to be of every-day use to photographers, would have its value impaired by the exclusive use of terms as yet imperfectly understood. A gain, an edition of Hardwich s Manual, devoid of the invaluable researches of Mr.
(Typographical errors above are due to OCR software and don't occur in the book.)

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 1330672003
• ISBN 13: 9781330672006
• Reliure: Broché
• Nombre de pages: 426
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