The SciencesAugust 14, 1909
Marvelous Paintings of Nature
Stories by Alfred Gradenwitz
TechnologyJune 26, 1909
A Motor Plow
The SciencesJune 12, 1909
An Automobile Trolley-Repair Truck
The SciencesJune 5, 1909
Reinforced Concrete Chimneys
A New use for Concrete Blocks
The SciencesMay 29, 1909
A New Departure in Locomotive Construction
The SciencesApril 10, 1909
The Commercial Production of Oxygen
The Improved Claude Process
The SciencesApril 10, 1909
A Life Preserver for Balloonists
The SciencesJanuary 30, 1909
Sending Pictures by Wireless
Transmission of Handwriting, Drawings, and Photographs Through the Air
TechnologyDecember 26, 1908
Models for Illustrating the Strain on Structures
The SciencesDecember 12, 1908
A Novel Type of Road Train
The SciencesSeptember 26, 1908
An Electrically-Operated Gas Plant
What the Electric Drive can do in Gas Making
The SciencesSeptember 12, 1908
A Police Academy at Rome
The SciencesAugust 29, 1908
An Up-To-Date German Fire Brigade
The Most Remarkable Station in the World
The SciencesJune 20, 1908
A Remarkable Mountain Railway
The SciencesMay 2, 1908
The Berlin Oceanographic Museum
The SciencesApril 25, 1908
The Explorations of the German Orient Society
The SciencesMarch 21, 1908
The Mutual Relations of Geometry and Mechanics and Prof. Reuleaux's Mechanical Movements
TechnologyJanuary 25, 1908
A Photographic Method of Producing Bas-Reliefs
HealthDecember 28, 1907
The Influence of Profession on the Shape of the Hand
The SciencesDecember 21, 1907
German Accumulator Cars
A Solution of the Suburban Traffic Problem
The SciencesDecember 14, 1907
A Glimpse of Western Tibet—An Austrian Expedition to the Forbidden Land
The SciencesNovember 30, 1907
Photographic Sensitiveness
How Plates are Tested
The SciencesOctober 19, 1907
The Colzi Sun Prism
A Device for Controlling Light Intensity
TechnologyOctober 12, 1907
A Universal Astronomical Clock