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Previous Issue: Vol. 19, No. 481, Apr. 22, 1892
Next Issue: Vol. 19, No. 483, May 6, 1892
The New Method of Protecting Buildings from Lightning, p. 239
- N. D. C. Hodges
Collecting Gorilla Brains, pp. 240-241
- Jas. E. Ives; R. H. Nassau
Notes and News, pp. 241-243
[Editorial Notes], p. 244
The Detection of Artificial (Imitation) Gems, p. 244
- W. G. Miller
The Systematic Position of the Diptera, pp. 244-245
- J. M. Aldrich
Deblooming Mineral Oils, pp. 245-246
- D. T. Marshall
Astronomical Notes, p. 246
- George A. Hill
Mr. Petrie's Discoveries at Tel-el-Amarna, pp. 246-247
- S. Y. Stevenson
The Rolling of Ships, pp. 247-249
Letters to the Editor
- A Fire-Ball, p. 249
- C. C. Bayley
- Lightning, pp. 249-250
- Marshall Henshaw
- Periodicity of the Aurora, p. 250
- M. A. Veeder
Among the Publishers, p. 251
Back Matter (3 pp.)
Previous Issue: Vol. 19, No. 481, Apr. 22, 1892
Next Issue: Vol. 19, No. 483, May 6, 1892