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Previous Issue: Vol. 15, No. 364, Jan. 24, 1890
Next Issue: Vol. 15, No. 366, Feb. 7, 1890
The Knees of the Bald Cypress: A New Theory of Their Function, pp. 65-67
- Robert H. Lamborn
The Gesner Rust-Proof Process, pp. 67-68
Electric Locomotive for Metal Mines, pp. 68-69
Electric Rotary Diamond Drill, p. 69
The Latest Theories on the Origin of the English, pp. 69-71+75-78
Notes and News, pp. 72-73
[Editorial Notes], p. 74
M. Du Chaillu on the Viking Age, p. 74
- Edward A. Freeman
Electrical News, p. 78
Book-Reveiws
- ----------------, p. 78
- Practical Marine Surveying
- Harry Phelps
- ----------------, p. 78
- Practical Hints for the Teachers of Public Schools
- George Howland
Among the Publishers, p. 80
Letters to the Editor
- An Insect Destructive to Wheat, p. 80
- Q. C. Smith
- The Fiske Range-Finder, p. 80
- Thos. L. Casey
Industrial Notes, pp. 80-82
Back Matter (1 p.)
Previous Issue: Vol. 15, No. 364, Jan. 24, 1890
Next Issue: Vol. 15, No. 366, Feb. 7, 1890