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India Rubber

On the Para and Ceara Rubbers and Balsam of Copaiba Trees.

Photographic Printings

Printing, comprising items of information in relation to every class of work. Plain and Albumen, Porcelain and Carbon Work, are all treated of in this series

By John L. Gihon

Improved Gas Regulator for Burners

MR. D. BRUCE PEEBLES (Edinburgh) read the following paper recently before the North British Association, which we take from the Journal of Gas Lighting

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    October 05, 1878

    See the World from a Different Perspective

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