Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 783
le that ifthe demand still increases, there may be a gutta-percha famine. Theconcreted juices of certain other trees have been proposed as substitutesfor gutta-percha. None of these have as yet come into practical use. Theincrease in a few years of the quantity of Indian-rubber imported into… … Fig. 338.—Portrait of Sir James Young Simpsojt, M.D. ANESTHETICS. THE discovery which is indicated by the somewhat unfamiHar word*-•• which heads this article is perhaps the greatest which has ever beenmade in connection with the science of medicine. At least, there is noother discover) of modern…
Inventions
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