Science, Vol. 4, No. 79, Aug. 8, 1884

Previous Issue: Vol. 4, No. 78, Aug. 1, 1884
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Comment and Criticism, pp. 109-111

Letters to the Editor

Some United States Geologists, and the Propylite Question, p. 111

M. E. Wadsworth

Swarming Insects, pp. 111-112

Edward T. Nelson

Man and the Mastodon, p. 112

F. W. Putnam

The Madison Educational Convention, pp. 112-114
A Burrowing Spider, pp. 114-116

Alfred C. Stokes

The Exploring Voyage of the Challenger, pp. 116-118

G. Brown Goode

The Census Report of 1880, pp. 119-120
Geology of the Susquehanna River Region, pp. 120-121

Second Geological Survey of Pennsylvania: Report of Progress G ⁷ . The Geology of the Susquehanna River Region in the Six Counties of Wyoming, Lackawanna, Luzerne, Columbia, Montour, and Northumberland

I. C. White

Notes and News, pp. 121-124

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Next Issue: Vol. 4, No. 80, Aug. 15, 1884