Scientific Instruments

The Earliest Electromagnetic Instruments

The Microscope

Experiments and Observations on the Following Subjects

Section-Cutting: A Practical Guide to the Preparation and Mounting of Sections for the Microscope

On the Construction of a Silvered Glass Telescope

Electricity for the 4-H Scientist

Rough Ways Made Smooth

A System of Instruction in the Practical Use of the Blowpipe

Through a Microscope