DRAWING AND DESIGN $3

THIS volume is arranged for a comprehensive, self-instruction course

for both shop and drawing room.

——PLAN OF INSTRUCTION——

[Illustration: ROGERS’ DRAWING and DESIGN

Maxims and Instructions for the Boiler Room Useful to Engineers, Firemen & Mechanics; Relating to Steam Generators, Pumps, Appliances, Steam Heating, Practical Plumbing, etc. · 第 266 / 328 题