Volume 37, Issue 944supp
You are currently logged out. Please sign in to download the issue PDF.
Features
The Submarine Boat Gymnote
The Belduke Propeller
Ammonia Motors
The Power Station at Niagara
A Combined Wagon and Boat of Aluminum
Professor Wellner's Flying Machine
Alum as a Sensitizing Material for Paper
Experiments on Flying
The Artificial Production of Petroleum
Some of the Ancient uses of Asphaltum by the Aborigines of California
Cloth Oils in regard to Fire Risks
The Refining of Petroleum Oil
Rhea Fiber
Aluminum Battery
Counter of Telephone Communications
Tesla Motors Operated from Single-Phase Two-Wire Alternating Circuits
Studies of the Phenomena of Simultaneous Contrast Color; And on a Photometer for Measuring the Intensities of Lights of Different Colors
Alloys
Draught Dogs
John Milton's Cottage—A Buckinghamshire Village
Chalfont St. Giles and Jordans