Features
A New German Microscope
The Biological Laboratory at Wood's Holl, Mass
A Simple Emulsion for Matt or Printing Out Paper
Six-Spindle Multiple Drilling Machine
Suggestive Outlines of a Dynamic Explanation of Chemical Phenomena
The Role of Nitrate and Phosphate Fertilizers in the Richness of Wheat in Gluten
Some Details of the Paris-Madrid Racing Automobiles
Seven
The New Radiations—Cathode Rays and Roentgen Rays
Hertzian Wave Telegraphy
First Paper
