The Development of Submarine Boats—II
From Bushnell to Holland and Lake
Volume 71, Issue 1829supp
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Features
Vanadium—Its Discovery and History
Found in a Brown Lead Ore from Zimapan, Mexico
Experimental Science Teachinǵ
Some Applications of Mariotte's Bottle
Maǵnetic Crystals
An Interesting Investigation into the Magnetic Properties of Crystals
The Arǵon Process
The “Holy Mountain”
Exploring in the Sinai Peninsula
The Kniǵht Valveless Motor
A Highly Efficient Hydrocarbon Engine
The Geoloǵical Society of America
Report of the Annual Meeting at Pittsburgh, Penn