Helical Spring Tables - An Easy-To-Use Index of Ready-Designed Compression and Tension Springs from Which Selections May Be Made with Minimum Calculat
by John D. Gayer
A Little Book of Model Trains - Dealing with the Construction of Trains, Stations, and Accessories
by Various
Calculus Made Easy - Being a Very-Simplest Introduction to Those Beautiful Methods of Reckoning Which are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus
by Silvanus Phillips Thompson
Orchards and Fruit Gardens - With Information on Budding, Grafting and Cultivation of Fruit
by Hugh Clements
How to Make Patent Drawings - A Brief Treatise on Patent Drafting for the Use of Students, Draftsmen and Inventors
L. H. Fulmer
