 | American Association for the Advancement of Science - 1888 - 476 Seiten
...overwhelmed by the rising wave of mammalian Evolution." In this paper of LeConte's, which is entitled "On Critical Periods in the History of the Earth and their...the Sheffield Scientific School on the subject of Catastrophisra and Evolution. Among the most interesting discoveries connected with these creatures... | |
 | 1877 - 786 Seiten
...ending where the upheaved and contorted ledges from which it was derived had their remote beginning. ON CRITICAL PERIODS IN THE HISTORY OF THE EARTH, AND THEIR RELATION TO EVOLUTION; ON THE QUARTERNARY AS SUCH A PERIOD.1 BT JOSEPH LECONTK. TN the series of rocks representing the history... | |
 | 1876
...of certain Organic Substances in increasing the Sensitiveness of Silver Haloids. — .'. Le Conte. Critical Periods in the History of the Earth and their Relation to Evolution. — Phenomena of Binocular Vision. — C. Wachnmuth. Notes on the internal and external structure of... | |
 | 1877 - 1046 Seiten
...Oxygen in the Sun by Photography, aud a new Theory of the Solar Spectrum : 89. 1 PI. Jos. LE CONTE: on Critical Periods in the History of the Earth and their...Evolution: and on the Quaternary as such a Period: 99. CH. WACHSMOUTH: Notes on the internal and external structure of Palaeozoic Crinoids: 115. Osc.... | |
 | Sir Norman Lockyer - 1877 - 836 Seiten
...respecting an immense miocene continent. Prof. Joseph Le Conte, ot Oakland, California, furnished a paper on critical periods in the history of the earth and their...evolution ; and on the quaternary as such a period. This paper instanced and enlarged upon the breaks in the geological and palaeontological records, and... | |
 | 1877 - 564 Seiten
...hydroargentic iodide AglHI, etc., in the absence of an alkali. Philadelphia, June 26, 1877. ART. XVI. — On Critical Periods in the. History of the Earth and...their Relation to Evolution: and on the Quaternary as suc/ia Period;* by JOSEPH LECONTE. IN the series of rocks representing the history of the earth there... | |
 | 1878 - 790 Seiten
...malformation. Parents who neglect their children's teeth deserve uncompromising censure. GEOLOGY. On Critical Periods in the History of the Earth, and their relation to Evolution ; on the Quarternary as such a Period. BY JOSEPH LECONTE. Head befoic the National Academy of Sciences,... | |
 | Société géologique de France - 1878 - 858 Seiten
...new and gigantic Dinosaur, 87; — Notice of some new Vertebrate fossils, 249. J. Le Conte. — On Critical Periods in the History of the Earth and their...Evolution; and on the Quaternary as such a Period, 99. Cli. Wachsmuth. — Notes on the internal and external structure of Paleozoic Crinoids, 115, 181.... | |
 | Société géologique de France - 1878 - 866 Seiten
...new and gigantic Dinosaur, 87; — Notice of some new Vertebrate fossils, 249. J. Le Conte. — On Critical Periods in the History of the Earth and their...Evolution; and on the Quaternary as such a Period, 99. Ch. Wachsmuth. — Notes on the internal and external structure of Paleozoic Crinoids, 115, 181.... | |
 | California. Legislature - 1887 - 527 Seiten
...Evidences of Horizontal Crushing in the Formation of Coast Ranges of Cal. — Am. Jour., 1876. , . , 32.* Critical Periods in the History of the Earth and their Relation to Evolution. — Am. Jour., 1877. 33.* Phenomena of Binocular Vision— No. 10. Structure of Crystalline Lens and... | |
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On Critical Periods in the History of the Earth and their Relation to Evolution; and On the Quaternary as Such a Period... 
