Machines for Working Stone

A New Style of Pump Valve

Improved Frictional Driving Gear

Notes of a Voyage on the Nile

Sibley College Lectures.—1886-87

The Cornell University Non-Resident Lecturers in Mechanical Engineering III.—The Sale of Steam

The Imperial Standard Photometer

Some Type Writers—Their Origin and Uses

Improved Direct Acting Gas Furnace

Fuel Calorimetry

Photography upon Wood

An Electric Tachometer

Some Features of the Recent Earthquake

Pepsin