The SciencesApril 30, 1881
Simple Holtz Electrical Machine, and Some Experiments in Static Electricity
Stories by M. Hopkins
TechnologyDecember 4, 1880
Wire Apparatus for Laboratory Use
TechnologyOctober 30, 1880
New Recording Galvanometer
The SciencesApril 17, 1880
Simple Mercurial Air-Pump
The SciencesAugust 30, 1879
An Electrical Cabinet
The SciencesMarch 8, 1879
A Few Experiments with the Induction Coil
The SciencesFebruary 8, 1879
Telephone Calls
The SciencesJanuary 25, 1879
How to Make an Induction Coil
The SciencesJanuary 4, 1879
Galvanic Batteries.—No. 1
The SciencesApril 13, 1878
Spider Engineering