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Previous Issue: Vol. 21, No. 541, Jun. 16, 1893
Next Issue: Vol. 21, No. 543, Jun. 30, 1893
Front Matter (1 p.)
A Study on Plant Fecundation, pp. 337-338
- H. J. Webber
Climate and the Variation of Slugs, pp. 338-339
- T. D. A. Cockerell
A Study in Polarization.--Preliminary Note, pp. 339-340
- John Daniel
On the Formation of Aluminum sulphate in the Shales Thrown from Coal-Mines, p. 340
- M. H. Lockwood
Current Notes on Anthropology.--XXX, pp. 340-341
- D. G. Brinton
Notes and News, p. 341
[Editorial Notes], p. 342
The Sediment of the Potomac River, pp. 342-343
- Cyrus C. Babb
Glaciation in Pennsylvania, p. 343
- Edward H. Williams, Jr.
Influence of Parasites on Other Insects, pp. 343-344
- G. C. Davis
Earthquakes in Australasia.--II, p. 344
- Georgk Hogben
Letters to the Editor
- Some Recently Discovered Trilobites with Appendages, pp. 344-345
- J. F. Kemp
- Cedar Waxwing, p. 345
- Witmer Stone
- Native Lead, p. 345
- C. W. Kempton
- The Ancient Egyptian Language, p. 345
- Chas. H. S. Davis
- Funnel-Shaped Clouds, p. 345
- G. H. Stone
- Glaciers in the United States, p. 345
- Fred. G. Plummer
- Binocular Vision, pp. 345-346
- Arthur E. Bostwick
- A Night-Singing Cat-Bird, p. 346
- A. Stevenson
- Is It a Paleolith?, p. 346
- Jno. T. Campbell
- Cloud Formation, pp. 346-347
- Alvah A. Eaton
- Birds That Sing in the Night, p. 347
- Alvah A. Eaton
- Books for Children, p. 347
- Austin C. Apgar
- Teaching of Biology, pp. 347-348
- H. T. Fernald
Book-Reviews
- ----------------, p. 348
- ----------------, pp. 348-349
- Review author[s]: Joseph F. James
- ----------------, p. 349
- The Microscopical Examination of Potable Water
- Geo. W. Rafter
- Review author[s]: C. P.
Among the Publishers, p. 349
Back Matter (2 pp.)
Previous Issue: Vol. 21, No. 541, Jun. 16, 1893
Next Issue: Vol. 21, No. 543, Jun. 30, 1893