Abstract
ALTHOUGH very uneven, the little book under notice is interesting. The definitions are usually rather carelessly given, if at all. Thus, in the chemical section (which is not very satisfactory) neither the iodine nor the acetyl value is explained, although both are quoted. Langmuir's name is incorrectly spelt throughout the book. The chapter on recent developments is of interest, and deals among other matters with the variation of efficiency with temperature and the effect of adding vegetable to mineral oils. We have previously commented on the very ambitious titles of the small books in this series; the remark applies in the present volume, and any one who expects what he might from the title will be disappointed.
Lubrication and Lubricants: a Concise Treatment on the Theory and Practice of Lubrication; the Physical, Chemical, and Mechanical Properties and Testing of Liquid and Solid Lubricants; with Notes on Recent Developments and Examples from Practice; for Engineers, Chemists, and Students.
J. H.
Hyde
By. (Pitman's Technical Primers.) Pp. x + 114. (London: Sir Isaac Pitman and Sons, Ltd., 1922.) 2s. 6d. net.
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Lubrication and Lubricants: a Concise Treatment on the Theory and Practice of Lubrication; the Physical, Chemical, and Mechanical Properties and Testing of Liquid and Solid Lubricants; with Notes on Recent Developments and Examples from Practice; for Engineers, Chemists, and Students. Nature 111, 392 (1923). https://doi.org/10.1038/111392b0
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DOI: https://doi.org/10.1038/111392b0