Pyrometry: a practical treatise on the measurement of high temperatures

ABSTRACT THE publication of the first edition of Mr. Darling's book on pyrometry in 1911 filled a want in English technical literature at a time when the value of a more exact

measurement of temperature in industrial operations was being appreciated. Mr. Darling points out in his preface to the new edition that since his book was first issued there has been a

great extension in the use of pyrometers in industrial processes and laboratory work, and there can be little doubt that his book has contributed in no small measure to this desirable

development. He further refers to the invaluable uses of pyrometers during the war, and it is pleasing to have his testimony that British makers were fully able to meet the demand for

instruments. In his revision Mr. Darling has described several instruments of the more recent pattern, and added new material, bringing the book thoroughly up to date. The bulk of the new

matter is to be found in the chapter dealing with thermo-electric pyrometry, and valuable and suggestive additions have been made, particularly on the use of base-metal junctions and on

protecting sheaths for couples. In the chapter on optical pyrometers there has been considerable extension, especially of the section on colour extinction instruments, the simplicity of

which is a strong point. Pyrometry: A Practical Treatise on the Measurement of High Temperatures. Chas. R. Darling By. Second edition, revised and enlarged. Pp. xii + 224. (London: E. and F.

N. Spon, Ltd.; New York: Spon and Chamberlain, 1920.) Price 10_s_. 6_d_. net. Access through your institution Buy or subscribe This is a preview of subscription content, access via your

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Practical Treatise on the Measurement of High Temperatures_ . _Nature_ 106, 371 (1920). https://doi.org/10.1038/106371c0 Download citation * Issue Date: 18 November 1920 * DOI:

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