TechnologyApril 1, 1927
Sensitive Relays Without Magnets
An Unusual Adhesive Force Between Partial Conductors of Electricity Makes Possible These Unique Relays
Stories by Alfred Gradenwitz
Mind & BrainMay 1, 1924
Experimental Telepathy
Tests by Dr. Carl Bruck, M.D., Berlin, on the Transmission of Drawings
HealthJanuary 1, 1924
A New Technique of Anesthesia, Haze and Mist
HealthDecember 1, 1923
Making Sport a Science
Devices and Tests Which Determine the Individual Fitness of Candidates
TechnologyDecember 1, 1923
A Wheelless Motor-Car
The SciencesSeptember 1, 1923
An Automatic Exposure-Meter, Doing Away with Dots and Dashes
Mind & BrainJanuary 1, 1923
Doing Two Things at Once
Multiple Consciousness, or Reflex Action of Unaccustomed Range?
The SciencesJanuary 1, 1923
On the Trail of the Taxi Driver, The Flickerless Projector
TechnologyAugust 1, 1922
Self-Steering Vessels
Recent German Developments in Automatic Gyro Practice
Mind & BrainJuly 1, 1922
Investigating unknown Forces
The Unique Psychic Laboratory of Fritz Grunewald, at Charlottenburg
The SciencesJune 1, 1922
Plants as Inventors
Sound Engineering Principles Practiced by Members of the Vegetable Kingdom
The SciencesMarch 1, 1922
Quantity Production of Relief Maps
A New Process Whereby These May Be Had Quickly and in Large Numbers
EvolutionFebruary 1, 1922
Where Human Speech Is Put On the Dissecting Table
The Remarkable Laboratory of Experimental Phonetics of Dr. Panconcelli-Calzia of Hamburg
The SciencesNovember 1, 1921
The Chemistry of the Volatile
Some Interesting Facts About a Relatively Obscure Phase of Chemistry
TechnologyApril 23, 1921
Cinematography at the Winning-Post
TechnologyDecember 4, 1920
The Flyer's Artificial Eye and Ear, Finding a Cool Hat
The SciencesNovember 27, 1920
Carbonic Acid Gas to Fertilize the Air
The SciencesMay 29, 1920
An Old Departure in Theater Building
The SciencesApril 7, 1917
Women-Chemists in Wartime
[article on chemistry schools for women in Berlin and elsewhere]
TechnologyJune 24, 1916
A Model Hospital Train
Describing the Completeness of the Bavarian State Hospital Train
TechnologyMay 20, 1916
A Pen that Permits of Writing with the Mouth
The SciencesFebruary 5, 1916
Keeping an Army Supplied
How Fighting Men of Germany Are Victualled and Munitioned
The SciencesJanuary 29, 1916
A Horses' Hospital
Work of the German Army Veterinary Surgeons
The SciencesDecember 11, 1915
Science and the War