Skip to main content

Features

A Visit to the Exposition of 1900

Plan of the Pan-American Exposition

The Cost of Electricity from Isolated Plants

An Extraordinary Telephone Accident

Selected Formulæ

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?

By Cornelius W. McKay

Porcelain and Watch Dial Pictures

On Mounting Prints without Cockling

The Nature of the Elements

By Curt Schmidt

The Doctor outside of Medicine

By William L. Stowell

Patents!

Departments

  • Departments

    New Books Etc.

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
March 31, 1900

Beyond XX and XY

Biology. Identity. Equality.