BOOKS IN EUROPEAN LANGUAGES
THE TESTING OF
including steam engines and turbines, lo motives, boilers, condensers, intern combustion engines, gas producer ' refrigerators, air compressors, fans, pumps, etc.
LONGMANS, GREEN AND CO. 39 paternoster row, london
fourth avenue & 30th street, new york bombay, calcutta, and madras I920 All rights reserved