SA Supplements

The Ruins of Leland Stanford, Jr., University

The find at Oxyrhynchus

Simple Tests for the Detection of Food Adulterants

Reservoir, Fountain, and Stylographic Pens —VII

The Utilization of Solar Heat for Industrial Purposes by means of a New Plane Mirror Reflector

A New Device for the making of Curved Stereotype Printing Plates for Newspapers

Concrete Mixing Machinery

New Seating Arrangement for Street Cars

A Simple Method of Measuring the Density of Liquids

The N-Ray Problem

The San Francisco Earthquake of April 18

A New Source of India Rubber

The Gelada of the Zoological Garden of Leipsic

Chess Players' Time-Keeper

Recent Advances in Fine Measurement

Imitation of Precious Stones

Relative Total Heat Received from Sun and Sky during any Day by Horizontal Surfaces

Contemporary Electrical Science

Science Notes

Electrical Notes

Engineering Notes

Correspondence