Plan of the Pan-American Exposition
The Cost of Electricity from Isolated Plants
An Extraordinary Telephone Accident
The Value of Para Rubber
Solubility of Copper in Gelatine Solution
Trade Notes and Receipts
Sugar from Watermelons
Trade Suggestions from United States Consuls
Krupp Central-Pivot Gravity and Spring-Return Carriages for Naval Ordnance
Bessemer Steel Production in 1899
Is the Steering of the Modern Screw-Propelled Vessel Defective?
Porcelain and Watch Dial Pictures
On Mounting Prints without Cockling
The Nature of the Elements
The Doctor outside of Medicine
New Books Etc.