. The Locomotive . A CONSTRUCTIVE SERVICEextended to anyone interested in BOILER ECONOMY and SAFETY i Write to-day for details to the HOME OFFICE of THE HARTFORD STEAM BOILERINSPECTION and INSURANCE CO. HARTFORD CONNECTICUT. Devoted to Power Plant Protection Published Quarterly Vol. XXXIII. HARTFORD, CONN., OCTOBER, 1921. No. 8 COPYRIGHT. 1921, BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE CO.

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