The Proceedings of the Royal Society of Queensland, 1890 to 1893

The Proceedings of the Royal Society of Queensland, 1890 to 1893 : Volumes VII, VIII, and IX (Classic Reprint)

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Excerpt from The Proceedings of the Royal Society of Queensland, 1890 to 1893: Volumes VII, VIII, and IX Addition of alcohol to the residue from petroleum spirit dissolves 61-8 per cent. Of a resin of superb ruby colour. This is a most handsome resin, and should be further enquired into, both from a scientific point of view, and also to investigate its usefulness for tinctorial or other economic purposes. The residue was then acted upon by water, with the result that per cent. Of a yellow substance, consisting of colouring matter and salts, was extracted. It contains no arabin. The residue (260 per cent.) is of a chocolate colour, consists of woody fibre and other vegetable debris, such as cone scales, &c., and does not contain any gummy matter. 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.show more

Product details

  • Paperback | 370 pages
  • 152 x 229 x 20mm | 494g
  • Forgotten Books
  • English
  • 69 Illustrations; Illustrations, black and white
  • 0243278799
  • 9780243278794