Volume 62, Issue 1615supp
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Features
Metallic Filaments for Electric Lamps
Is the Sixteen Candle-Power Standard for Electric Lamps out of Date?
The Fireproof Dynamo
Improvements in Gas Lighting
“Ounce Metal”
How to Construct an Independent Interrupter
Experimental Theater Conflagrations
Treatment of Rivers with Shifting Channels
The Collecting and Testing of Carbonic Acid for Purposes of Carbonization
Greenhouse and Conservatory Heating
Herculaneum
Pajarito Ruins—Their Accessibility
Mars as a Place to Inhabit
Gas as a Source of Power.—I
Generation of Producer, Mond, and Blast Furnace Gases
A New Process of Sterilizing Corks
How Seeds are Carried.—IV
IV. Seeds scattered by Propulsion