
TechnologyJanuary 13, 1912
The "Cement Gun"
Plaster Work Done With a Hose

The "Cement Gun"
Plaster Work Done With a Hose

An Enormous Discharǵe of Dynamite
Blastinǵ Off the Side of a Mountain

A Useful Device for Lettering Tracings, Protecting the Threads of a Chuck and more

The Problem of Waterproofing
The Properly Built Concrete House is Dampproof

Case for Phonograph Records

Cement on the Farm
A Material of Many Uses

Ornamental Concrete Flower Pots and How to Make Them