Proceedings, Volume 19 |
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A. A. A. S. VOL angle Anomodontia Apatite appear arch Association body bone Boston cause centre centrifugal centripetal force cephalothorax character Chicago clouds color columella contraction Cope cranium Crocodilia developed diameter distance DUAL earth electricity Epoch equal Ermingnya Ermiyuma existence fact feet fibres flame Fungus glaciers globe gneiss gravity halo heat hundred Ichthyopterygia Ichthyosaurus Illinois 17 inches increase Lacertilia Lake Lake Michigan Lystrosaurus mass Massachusetts Massachusetts 18 matter mercury Michigan microscope Milwaukie moraines motion Mucor nature nearly nebular theory nebulous Norther northern observed ocean oidium opisthotic orbit origin parietal particles period phenomena planets PLURAL portion position posterior present prisms produced proötic Pythonomorpha quadrate quadratojugal region Reptilia Rhynchocephalia rings Sauropterygia seen side sidereal systems SINGULAR solar system space species specimen spectrum spirals squamosal stars suppose surface temperature Testudinata tion Troy velocity of rotation vibrios wash thee yeast York
Popular passages
Page xi - SCIENCE. The objects of the Association are, by periodical and migratory meetings, to promote intercourse between those who are cultivating science in different parts of the United States, to give a stronger and more general impulse and a more systematic direction to scientific research in our country, and to procure for the labors of scientific men increased facilities and a wider usefulness.
Page 32 - the same point in these terms: " M. Comte, of Paris, has made some approach to the verification of the hypothesis, by calculating what ought to have been the rotation of the solar mass at the successive times when its surface extended to the various planetary orbits. He ascertained that the rotation corresponded in every case with the actual
Page 179 - the valley bottom over and over again, grinding all the materials beneath it into a fine powder. How did these shells escape during "the kneading process the drift has undergone beneath the gigantic
Page 184 - ZOOLOGY. 1. ON THE HOMOLOGIES OF SOME OF THE CRANIAL BONES OF THE REPTILIA, AND ON THE SYSTEMATIC ARRANGEMENT OF THE CLASS. By EDWARD D. COPE, of Philadelphia,
Page 364 - Society. Liverpool, — The Literary and Philosophical Society. London, — Board of Admiralty. „ East India Company. „ Museum of Practical Geology. „ Royal Society. „ Royal Astronomical Society. „ Royal Geographical Society. „ Royal Institution of Great Britain.* Manchester, — Literary and Philosophical Society.
Page 368 - by Dr. Ward. Mr. EB Benjamin, of New York, exhibited a microscope by Gundlach of Berlin. This was a small and cheap instrument, according to the English and American standard, but really admirable for its neatness of design and finish, and its general excellence of performance. Beck's popular microscopes (binocular) were exhibited by Mr. CE Hanaman, of Troy,
Page 37 - If a planet in a primitive state existed in the form of a ring, revolving around the sun, the momentum of rotation must, by virtue of the principle of conservation of movement, have existed in some form in the ring.
Page 164 - a higher geological horizon, and therefore placed them above the dolomites of the northern part of the State, as the equivalents of the so called Lower Helderberg group. We are now, however, fully satisfied from a further examination of these Upper Silurian strata, over a more extended region, that our first conclusion was correct, and that
Page 238 - character of the body, as shown in the prominent cardiac and lateral regions of the body, and the well-marked abdominal segments of the embryo, the broad sternal groove, and the position and character of the eyes and ocelli,
Page 113 - bright lines or absorption bands, nor was any coincidence observed between the lines of the Bessemer spectrum and those of the carbonic oxide vacuum tube. The lines of lithium, sodium, and potassium,