Volume 20, Issue 508supp
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Features
Permeability of Sand Rock
Deep Shafts and Deep Mining
The Cabbage Butterfly
Remarkable Wells and Caverns
Camellias
The Pitcher Plant
The Bhotan Cypress
Cupressus Torulosa
What is a Plant?
Striking a Light
Arisæma Fimbriatum
Mast.; sp. nov.
Experiments in Memory
Sinking of the Quievrechain Working Shaft
On the Elementary Principles of the Gas-Engine
Assay of Earthenware Glaze
On the Electrical Furnace and the Reduction of the Oxides of Boron, Silicon, Aluminum, and Other Metals by Carbon
M. Meizel's Reciprocating Exhauster
Automatic Siphon for Irrigation
The Cowles Electric Smelting Process
Optical Telegraphy
Cryptography.—Preservation Of Telegrams