
Sensitive Relays Without Magnets
An Unusual Adhesive Force Between Partial Conductors of Electricity Makes Possible These Unique Relays
An Unusual Adhesive Force Between Partial Conductors of Electricity Makes Possible These Unique Relays
Tests by Dr. Carl Bruck, M.D., Berlin, on the Transmission of Drawings
Devices and Tests Which Determine the Individual Fitness of Candidates
Multiple Consciousness, or Reflex Action of Unaccustomed Range?
Recent German Developments in Automatic Gyro Practice
The Unique Psychic Laboratory of Fritz Grunewald, at Charlottenburg
Sound Engineering Principles Practiced by Members of the Vegetable Kingdom
A New Process Whereby These May Be Had Quickly and in Large Numbers
The Remarkable Laboratory of Experimental Phonetics of Dr. Panconcelli-Calzia of Hamburg
Some Interesting Facts About a Relatively Obscure Phase of Chemistry
[article on chemistry schools for women in Berlin and elsewhere]
Describing the Completeness of the Bavarian State Hospital Train
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