The American Geologist, Volume 26Newton Horace Winchell Geological Publishing Company, 1900 - Geology Includes section "Review of recent geological literature." |
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Page 50
... shows two layers . In vertical diameter the tubes seem to average about 1-150 of an inch , and say 1-75 of an inch ... show the tubes twice as large as do others , and there appears to be a gradation in size as one would naturally expect ...
... shows two layers . In vertical diameter the tubes seem to average about 1-150 of an inch , and say 1-75 of an inch ... show the tubes twice as large as do others , and there appears to be a gradation in size as one would naturally expect ...
Page 50
... show . Secondly . Instead of gaps or openings in the outer margins of the layers a a ' which give to the specimens the tooth - shaped aspect , these could not have formed , there would have been a crowding instead of a stretching of the ...
... show . Secondly . Instead of gaps or openings in the outer margins of the layers a a ' which give to the specimens the tooth - shaped aspect , these could not have formed , there would have been a crowding instead of a stretching of the ...
Page 51
... in the form of a blackish lamina in the paler matrix of Pennsylvania anthracite . This specimen is forked or shows two lobes along its left margin . A row of elongated spots , pale gray New Coal Plants in Coal . - Gresley . 53.
... in the form of a blackish lamina in the paler matrix of Pennsylvania anthracite . This specimen is forked or shows two lobes along its left margin . A row of elongated spots , pale gray New Coal Plants in Coal . - Gresley . 53.
Page 52
... show no organized structure , and their composition is dull and fine - grained . Fig . 6. Longitudinal section , in ... shows its broadest part . This fossil has been observed to occur in several layers , one over another and in close ...
... show no organized structure , and their composition is dull and fine - grained . Fig . 6. Longitudinal section , in ... shows its broadest part . This fossil has been observed to occur in several layers , one over another and in close ...
Page 74
... show remarkable skill in portrayal and confirm the impression that the qualities which go to make a great naturalist are like- ly to produce a skillful wielder of the pencil and brush . At least hosts of distinguished students of nature ...
... show remarkable skill in portrayal and confirm the impression that the qualities which go to make a great naturalist are like- ly to produce a skillful wielder of the pencil and brush . At least hosts of distinguished students of nature ...
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Common terms and phrases
abundant acid albite alteration alumina Amer AMERICAN GEOLOGIST andesine apatite augite biotite Birch lake birefringence bowlingite brown Bull Burlington Canada Carboniferous Carlton peak chemical composition cleavage coal color Cope cordierite cordierite noryte crystals Dawson Devonian diabase dikes elongation extinction angle fayalite feldspar figure flora fossil Fouqué gabbro Geol Geological Survey grains green greenish halos hematite hornblende iron Jour Journ labradorite limestone London magma magnetite mass McGill McGill University mineral mineralogical Minn Minnesota Montreal Natural History nearly normal gabbro Note Nova Scotia occurs olivine olivine diabase olivine gabbro optic angle origin orthoclase orthoclase gabbro oxide parallel penninite perpendicular Peter Redpath Pigeon point plagioclasyte plane plates pleochroism pores Proc Prof pyroxene quartz quartz gabbro rare refringence rock Science shows silicoferrolyte species specimens staurolite structure texture tion troctolyte twinning usually ventral sac Winchell
Popular passages
Page 20 - Archaia; or, Studies of the Cosmogony and Natural History of the Hebrew Scriptures. By Professor "Dawson, Principal of McGill College, Canada.
Page 17 - On the Course of Collegiate Education adapted to the circumstances of, British America. The Inaugural Discourse of the Principal of McGill College, Montreal.
Page 20 - Notice of Tertiary fossils from Labrador, Maine, etc., and remarks on the climate of Canada, in the newer Pliocene or Pleistocene period: Ibid., June, 1860, vol.
Page 23 - Further observations on the Devonian Plants of Maine, Gaspe", and New York.
Page 46 - The Canadian Ice Age, being notes on the Pleistocene geology of Canada, with especial reference to the life of the period and its climatic conditions.
Page 4 - I would place here first, the establishment of a bond of union between the scattered workers, now widely separated in different parts of the Dominion. Our men of science are so few, and our country so extensive, that it Is difficult to find in any one place, or within reasonable distance of each other, haifa-dozen active workers in science.
Page 20 - Geology, tamo. 70 pp. Wood engravings of fossils. Edinburgh. On an undescribed Fossil Fern from the Lower Coal Measures of Nova Scotia. (Abstract) Can. Nat. & Geol., Vol. 5, No. 6, Dec., 1860, pp. 460-461. Montreal. Quart. Journ. Geol. Soc., Vol. 17, 1861, p. 5. London, Eng.
Page 40 - ... to all who desire to realise the actual surroundings amid which our Lord spent His life on earth, and will be specially useful in correcting some false notions which have obtained wide currency, eg, the common idea that Nazareth was a small, obscure, and immoral place," — Congregationalism Egypt and Syria.
Page 22 - ... date September, 1862, was inserted.) Notes on the flora of the White mountains in its geographical and geological relations: Can. Nat. and Geol., vol. 7, 1862, pp. 80-102, Montreal. On an erect Sigillaria and Carpolite from Nova Scotia: Ibid., vol. 7, pp. 106-113, Montreal. On the footprints of Limulus as compared with the Protichnites of the Potsdam sandstone: Ibid., vol.
Page 5 - History, an incalculable stimulus would be given to science in Canada, by promoting research, by securing to this country the credit of the work done in it, by collecting the information now widely scattered, and by enabling scientific men abroad to learn what is being done here.