Volume 42, Issue 1086supp
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Features
The Reproduction of Diffraction Gratings
The Chevalet Heater-Detartarizer
A Novel Indicator
Genard's Safety Valve
Transferring Films While Wet
Collodion
Selected Formulæ
Wholesale Development
A Terrific Ballooning Experience
Miscellaneous Notes
Electrical Notes
Engineering Notes
The Bicycle in the Army
Renaissance Clocks according to Works of Art
Alternate Current Transformers
Lecture II. The Construction of the Transformer
Scientific Education in Germany and England
Some Common Diseases Observed North of the Arctic Circle
Jointing of Sewer and Drain Pipes
The Influence of Light upon the Periodical Depth Migrations of Pelagic Animals
Botanical Gardens
Origin and Development