Mechanical equipment of buildings; a reference book for engineers and architects
A two-volume engineering reference on heating, ventilation and power plant equipment by Louis Allen Harding and Arthur C. Willard, published by Wiley in New York in 1916 for practising engineers and architects. Line diagrams dominate: sectioned valves and traps with hatched cast iron, indicator cards with labelled curves, boiler and draft-gauge schematics, and building plans tracing pipe runs.
