Features
American Archæology
The Fire-Bush
Forest-Tree Borers
The Collodio-Bromide Emulsion Process
Edwards' Enlarging and Copying Camera
Chromo-Photography
A New Albert-Type Process that Reproduces Color in Pictures
Blue Alizarin
Dyes and Colors
On the Use of Chalk in Dyeing Wool
Manganese and Chrome Blues
Direct Ink Printing from Glass Negatives
Hearing by the Teeth
Food
Absorption of Carbonic Oxide
Contributions to Blowpipe Chemistry
First Paper.—New Blowpipe Bellows*