The American Naturalist, Volume 12Essex Institute, 1878 |
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Halaman iii
... Rocks and Fossils .. The Springs of Southern Nevada .. The Night Herons and their Exodus . Variations in the Nests of the same Species of Birds . Animal Movements in Animal Evolution . W. H. Dall . . S. K. Lum .. The Saurians Recently ...
... Rocks and Fossils .. The Springs of Southern Nevada .. The Night Herons and their Exodus . Variations in the Nests of the same Species of Birds . Animal Movements in Animal Evolution . W. H. Dall . . S. K. Lum .. The Saurians Recently ...
Halaman vi
... Rocks by the Microscope , 491 ; Oleomarga- rine , 492 ; A Rare Sale , 492 ; Exchanges 492 ; Microscopical Section , Troy Scientific Association , 572 ; New Microscopical Journals , 574 ; New American Objectives , 574 : Minerals for the ...
... Rocks by the Microscope , 491 ; Oleomarga- rine , 492 ; A Rare Sale , 492 ; Exchanges 492 ; Microscopical Section , Troy Scientific Association , 572 ; New Microscopical Journals , 574 ; New American Objectives , 574 : Minerals for the ...
Halaman 13
... ROCKS AND FOSSILS . THE BY DR . R. FRITZ - GAERTNER . HE examination of rocks in regard to their lithological char- acter is accompanied with great difficulties whenever their com- posing minerals are so minute and so thoroughly ...
... ROCKS AND FOSSILS . THE BY DR . R. FRITZ - GAERTNER . HE examination of rocks in regard to their lithological char- acter is accompanied with great difficulties whenever their com- posing minerals are so minute and so thoroughly ...
Halaman 14
... rock under examination by comparison with a group of rocks , with which it has the greatest resemblance in its chemical composition . At the same time we have to remember that there are rocks which are of the same chemical composition ...
... rock under examination by comparison with a group of rocks , with which it has the greatest resemblance in its chemical composition . At the same time we have to remember that there are rocks which are of the same chemical composition ...
Halaman 15
... rocks for the micro- scope . The examination of the rock consisted mainly in view- ing its natural fracture or polished surface by aid of reflected light , as the opaqueness of the material did not allow the use of a transmitted light ...
... rocks for the micro- scope . The examination of the rock consisted mainly in view- ing its natural fracture or polished surface by aid of reflected light , as the opaqueness of the material did not allow the use of a transmitted light ...
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Academy Agathaumas American animal appear archæology birds body Botany California Camarasaurus Canada balsam Carboniferous cells character chitinous coast collected color Colorado cretaceous Cycadacea described diameter diamond Dicotyledons dorsal dugong eggs ELLIOTT COUES epithelium exploration fact feet female fish flora flowers fossil genera genus Geographical Geological Survey glands ground hairs inches Indians insects intercentra interesting known Lake land larva larvæ latter leaves legs length locust mass maxillæ Mexican Mexico microscope miles Miocene Museum Natural History NATURALIST nest North observed organs origin paper plants plates portion prairie dog prairies present probably Prof pupa recently region remarkable Report resemblance river rocks Rocky Mountain scientific seen shell side slides snake Society soil Southern species specimens spring stone structure surface thick tion trees triungulin valley vegetation vertebrates W. H. Dall
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