... communicating with one another, and having such a nice adjustment of their declivities, that none of them join the principal valley, either on too high or too low a level; a circumstance which would be infinitely improbable, if each of these valleys were not the work of the stream that flows in it. - Page 278
List of marine mollusca of Coldspring Harbor, Long Island, with descriptions of one new genus and two new species of Nudibranchs. - Page 222
Catalogue of Marine Mollusca added to the Fauna of the New England Region during the past Ten Years. Trans. Conn. Acad. Arts and Sci., vol. - Page 159
more »On looking at the maps of any of these lakes one can not but see that the lake surface, not the lake bottom, represents approximately the level of the pre-glacial valley, and that the lateral streams and torrents enter the lake in the way they do because they could only erode their channels down to the level of the old valley before the ice overwhelmed it. - Page 314
Observations in the Sierra Nevada led this keen observer to state that " the effect of the temporary occupancy of a typical water-cut canon by glacier ice will be to (1) increase its width, (2) change the original V to a U cross profile, (3) cut off the terminal portions of tributary canons and thus relatively elevate their embouchures, (4) intensify certain irregularities of gradient in the canon-bottom, (5) excavate rock-basins, (6) develop cirques, and, in general, transform such canon into an... - Page 311
On the limpets; with special reference to the species of the west coast of America, and to a more natural classification of the group. Am. - Page 221
No. 13. The embryonic history of imaginal discs in Melophagus ovinus L., together with an account of the earlier stages in the development of the insect. - Page 16
Greenman. 22 pp. 25 cts. No 4. Studies in Diptera Cyclorhapha. 1. The Pipunculidae of the United States. By Garry de N. Hough. 10 pp. 10 cts. No. 3. Notes on the reptiles and amphibians of Intervale, NH By Glover M. Allen. 13 pp. 15 cts. No. 2. Variation and sexual selection in man. - Page 160
... Allen. 13 pp. 15 cts. No. 2. Variation and sexual selection in man. By Edwin Tenney Brewster. 17 pp. 25 cts. No. 1. Proceedings of the Annual Meeting, May 3, 1899. - Page 22
The development of Penilia schmackeri Richard. By Mervin T. Sudler. 23 pp., 3 plates. 30 cts. No. 5. Contributions from the Gray herbarium of Harvard university. New series, no. 17. - Page 184
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