Describing in simple language how various machines and many articles in common use are manufactured from the raw material.
12mo. Cloth. 474 pages, with numerous illustrations and diagrams.
Price $1.20 net
HOW IT WORKS
By Archibald Williams
Author of “How It is Done,” “How To Make Things,” “How It is Made.”
It deals in simple language with Steam, Electricity, Light, Heat, Sound, Hydraulics, Optics, etc., and with their application to apparatus in common use.
12mo. Cloth. 461 pages, with illustrations and diagrams.
Price $1.20 net
HOW IT FLIES
OR, THE CONQUEST OF THE AIR