Excerpt from Dictionary of Arts, Manufactures, and Mines, Vol. 2 of 2: Containing a Clear Exposition of Their Principles and Practice
According to Franke, the constituents of stick-lac are, resin, 65-7; substance of the lac, 28-3 coloring matter, 0-6.
Sced-lac. - When the resinous concretion is taken off the twigs, coarsely pounded, and triturated with water in a mortar, the greater part of the coloring matter is dissolved, and the granular portion which remains, being dried in the sun, constitutes seed-lac. It con tains of course less coloring matter than the stick-lac, and is much less soluble. John found in 100 parts of it, resin, 66-7; wax, 1-7; matter of the lac, 16-7; bitter balsamic matter, 2-5; coloring matter, 3-9; dun yellow extract, 0-4; envelopes of insects, 2-1; laceie acid, 0-0; salts of potash and lime, 1-0; earths, 6-6; loss, 4-2.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Excerpt from Dictionary of Arts, Manufactures, and Mines, Vol. 2 of 2: Containing a Clear Exposition of Their Principles and Practice
According to Franke, the constituents of stick-lac are, resin, 65-7; substance of the lac, 28-3 coloring matter, 0-6.
Sced-lac. - When the resinous concretion is taken off the twigs, coarsely pounded, and triturated with water in a mortar, the greater part of the coloring matter is dissolved, and the granular portion which remains, being dried in the sun, constitutes seed-lac. It con tains of course less coloring matter than the stick-lac, and is much less soluble. John found in 100 parts of it, resin, 66-7; wax, 1-7; matter of the lac, 16-7; bitter balsamic matter, 2-5; coloring matter, 3-9; dun yellow extract, 0-4; envelopes of insects, 2-1; laceie acid, 0-0; salts of potash and lime, 1-0; earths, 6-6; loss, 4-2.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Destinos, gastos y plazos de envíoLibrería: Forgotten Books, London, Reino Unido
Paperback. Condición: New. Print on Demand. This book spans a period during which the invention of the lace machine brought about great changes to the lace industry. This book examines the evolution of bobbin-net lace, from its origins to its dominance during the nineteenth century, and reveals how a series of technological changes transformed British lace from a luxury product to one that was accessible to all. An in-depth analysis of the many different systems of bobbin-net machines is presented alongside a fascinating account of the impact that lace had on the lives of those involved in its production. This book not only traces the history of lace but also explores the ideas surrounding the practice. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9780282328542_0
Cantidad disponible: Más de 20 disponibles
Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de America
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9780282328542
Cantidad disponible: 15 disponibles
Librería: PBShop.store UK, Fairford, GLOS, Reino Unido
PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9780282328542
Cantidad disponible: 15 disponibles