Hutchinson's Technical and Scientific Encyclopaedia

Abstract

WITH the publication of these two volumes, a praiseworthy piece of work is brought to completion. Among the subjects which receive particular consideration are hydrogenation, including hydrogena-tion of coal, indicators, internal combustion engines, iron and steel, lighting (the short note on lightning requires revision in the light of recent work and results with the Boys' camera), locomotives, lubricants, metallography, silks (natural and artificial), sound (measurement, recording, reproduction, etc.), steam engines and turbines, television, thermionics, vitamins, as well as such departments of work as magnetism, navigation, telegraphy and telephony, and so on. Finally, there is a comprehensive bibliography containing classified lists of books and other sources of information on subjects of scientific and technical importance.

Hutchinson's Technical and Scientific Encyclopaedia

Edited by C. F. Tweney I. P. Shirshov. Vol. 3: Hydrogen-Ion Concentration (continued) to Petrol. Pp. 1345–1920. 24s. Vol. 4: Petrol Engines to Zymurgy, and Bibliography. Pp. 1921–2468. (London: Hutchinson and Co. (Publishers), Ltd., 1935.) 20s.; 4 vols., £5.