The Cause of Evident Magnetism in Iron, Steel, and other Magnetic
Metals.--By Prof. D. E. HUGHES. Neutrality.--Superposed
Magnetism.--Elastic Nature of the Ether Surrounding the Magnetic
Molecules. 3 figures.

II. ENGINEERING.--The Westinghouse Brake. 2 figures.

Hydraulic Elevators and Motors.--By B. F. JONES.--Bearing
upon the Water Supply of Cities.--Cost of Water used.--Objectionable
effects on Water Works.--Best method of arranging water
supply.--Cause of Accidents.--Advantages of Water Motors over
Steam Engines.--Rates for Water Motors.

Water Supply of Small Towns.--Process of Softening Hard
Water. Six figures.

Improved Water Meter. Several figures.

III. TECHNOLOGY.--Washing Machine for Wool. 1 figure.

Increasing the Illuminating Power of Gases, etc.--By V. POPP.--
3 figures.

Preventing Iron from Rusting.

An Elastic Mass for Confectioners' Use.

Caoutchouc.

Photographic Action Studied Spectroscopically.