Features
The Belduke Propeller
A Great Steamer
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
Some of the Ancient uses of Asphaltum by the Aborigines of California
The Artificial Production of Petroleum
The Refining of Petroleum Oil
Cloth Oils in regard to Fire Risks
Aluminum Battery
Rhea Fiber
Tesla Motors Operated from Single-Phase Two-Wire Alternating Circuits
Counter of Telephone Communications
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
