Title: | 500 plain answers to direct questions on steam, hot water, vapor and vacuum heating; the science and general practice of heating, including modern systems of modified heating, explained in a series of plain questions and answers with tables, rules and general information, forming a complete text book and manual for the apprentice and journeyman steam fitter. A reference book for master fitters, architects and heating contractors. By Alfred G. King ... 2d ed., thoroughly rev. and enl., illustrated by 157 specially made engravings. New York, The Norman W. Henley publishing company, 1923. |
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