Prehistoric Classification
Steps in the Determination of the Age of Man
Volume 84, Issue 2189supp
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Features
Influence of the Fineness of Division of Pulverized Limestone on Crop Yield
Demagnetization of Iron
Magic Behind the Trenches
Technical Work as Important as Fighting
The Fish Louse: Argulus Foliaceus L
Some New Paper-Making Materials
Magnetization by Rotation
Chemical Laboratory Porcelain
Burmese Black Varnish or Lacquer
War-Time Smuggling
Archeological Notes on the Danish West Indies
The Petroglyphs of The Island of St. John and of Congo Cay
Black Photographic Images Produced by Kathode Ray
Arc Light Efficiency
Catalytic Decomposition of Benzoyl Chloride
Sisal
Rainfall with Air Temperature below the Freezing-Point
Pruning Fruit Tree Roots
How the Sun, Earth and Moon Move
Illustrated by an Ingenious Mechanical Model
Appetite of the Mole
Coal and its Undiscovered Riches
Permanent Magnets
The Effect of Chemical Composition, Shape, Dimensions, Heat, Treatment and Usage