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Previous Issue: Vol. 19, No. 487, Jun. 3, 1892
Next Issue: Vol. 19, No. 489, Jun. 17, 1892
Direct Reflecting Polariscopes, p. 323
- T. Proctor Hall
Notes on the Fertility of Physa Heterostropha Say, pp. 323-324
- W. L. Poteat
Nebraska Sugar School, p. 324
Secondary Batteries, pp. 324-326
Notes and News, pp. 326-327
[Editorial Notes], p. 328
A Brief Study of the Palenque Tablet, pp. 328-329
- Cyrus Thomas
The New Element, Masrium, pp. 329-330
- A. E. Tutton
Some Notes on the Victoria Nyanza, pp. 330-331
Letters to the Editor
- The Relative Hardness of Cut Diamonds, p. 331
- Wm. A. Rogers
- The Notion of Four-Fold Space, pp. 331-332
- C. Staniland Wake
- The Possibility of a Realization of Four-Fold Space, p. 332
- Edmund C. Sanford
- Eskimo Throwing-Sticks, p. 332
- O. T. Mason
Among the Publishers, pp. 332-335
Back Matter (3 pp.)
Previous Issue: Vol. 19, No. 487, Jun. 3, 1892
Next Issue: Vol. 19, No. 489, Jun. 17, 1892