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Previous Issue: Vol. 15, No. 377, Apr. 25, 1890
Next Issue: Vol. 15, No. 379, May 9, 1890
A Superior Arc-Lamp, p. 267
On the Use of the Phonograph in the Study of the Languages of American Indians, pp. 267-269
Facts about Tornadoes, pp. 269-272
- H. A. Hazen
The Manufacture of Ozone, p. 272
The Oil-Fields in New Zealand, p. 272
The Use of Oil, pp. 272-273
Notes and News, p. 273
[Editorial Notes], p. 274
Letters to the Editor
- Recognition by Young Children, p. 274
- J. Mark Baldwin
- Whirlwinds, p. 275
- M. A. Veeder
- Effigy Mound in the Valley of the Big Sioux River, Iowa, p. 275
- T. H. Lewis
- Gorse or Furze, p. 275
- J. R. McGinnis
- Lightning-Discharge, p. 276
- S. T. Moreland
- Sunspots and Tornadoes, pp. 276-277
- James P. Hall
Book-Reviews
- ----------------, p. 277
- Graphics, or the Art of Calculation by Drawing Lines
- Robert H. Smith
Among the Publishers, pp. 277-279
Industrial Notes, pp. 279-280
Back Matter (3 pp.)
Previous Issue: Vol. 15, No. 377, Apr. 25, 1890
Next Issue: Vol. 15, No. 379, May 9, 1890