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Previous Issue: Vol. 19, No. 489, Jun. 17, 1892
Next Issue: Vol. 20, No. 491, Jul. 1, 1892
Aims of Laboratory Training, pp. 351-354
- Charles F. Mabery
Notes and News, pp. 354-355
[Editorial Notes], p. 356
Weeds as Fertilizing Material, pp. 356-357
- Charles Frederick Millspaugh
Notes on Local Membracidæ and Fulgoridæ, p. 357
- E. B. Southwick
The Texas Academy of Science, pp. 358-359
- Dr. Everhart
Letters to the Editor
- Causes Which Produce Cold, and Mild Periods, pp. 359-360
- C. A. M. Taber
- European Origin of the White Race, pp. 360-361
- D. G. Brinton
Among the Publishers, pp. 361-363
Back Matter (3 pp.)
Previous Issue: Vol. 19, No. 489, Jun. 17, 1892
Next Issue: Vol. 20, No. 491, Jul. 1, 1892