Volume 25, Issue 642supp
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Features
William Crookes, F.R.S., President of the Chemical Society
On a Trial of a Water Tube Boiler at Sibley College, Cornell University
The Eames Vacuum Brake
Machines for Beating Carpets
Copper Plate Printing
Chemical Reagents for Textile Fabrics
How to Turn a Sphere
Gas Lighting and Dust
The Mechanical Equivalent of Heat
Husband's Process of Photo-Lithography in Half Tone
The Great Telescope at Nice
Astronomical Society
The Direct Optical Projection of Electro-Dynamic Lines of Force and other Electro-Dynamic Phenomena
A very Valuable Lesson for those who use Anæsthetics
The Electrical Odontoscope
Chinese Dentistry
Simple Sphygmographs
Gravity
Physical Society
The Myrobalan or Cherry Plum
(Prunus Cerasifera)