The American Journal of Science and ArtsS. Converse, 1860 - Geology |
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Page 44
... thickness as half an inch , and not possessing a greater power of conducting heat through its mass than any we are acquainted with , must , on entering our atmosphere with planetary velocity , become self luminous by the time that ...
... thickness as half an inch , and not possessing a greater power of conducting heat through its mass than any we are acquainted with , must , on entering our atmosphere with planetary velocity , become self luminous by the time that ...
Page 62
... thickness , so that it may suffice for the ag- glomerations , since these absorb melted fatty matter , even to saturation . That this force of absorption is very energetically exercised , may be perceived after the cooling , since the ...
... thickness , so that it may suffice for the ag- glomerations , since these absorb melted fatty matter , even to saturation . That this force of absorption is very energetically exercised , may be perceived after the cooling , since the ...
Page 75
... thickness not yet proved ; then shales with bands of ironstone , and Stigmaria roots with Sigillaria stems , and a few detached fern leaves , in such soft shale that I have not been able to preserve any good specimens . Immediately ...
... thickness not yet proved ; then shales with bands of ironstone , and Stigmaria roots with Sigillaria stems , and a few detached fern leaves , in such soft shale that I have not been able to preserve any good specimens . Immediately ...
Page 105
... thickness of the crust . Figure 3 repre- sents the appear- ance of a small stone , one side of which shows a surface only partially glazed . There was evi- dently a flaw in this little me- teorite , and the heat entering the 3 . crack ...
... thickness of the crust . Figure 3 repre- sents the appear- ance of a small stone , one side of which shows a surface only partially glazed . There was evi- dently a flaw in this little me- teorite , and the heat entering the 3 . crack ...
Page 136
... thickness are made up of coarse and heavy sediments , and by their alteration yield hard aud resisting rocks ; so that subsequent elevation and denudation will expose these contorted and altered strata in the form of mountain chains ...
... thickness are made up of coarse and heavy sediments , and by their alteration yield hard aud resisting rocks ; so that subsequent elevation and denudation will expose these contorted and altered strata in the form of mountain chains ...
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Common terms and phrases
acid Alethopteris alloy American animal appear Arago arch arsenic aurora axis ball Berghaus Annalen bituminous Brgt bright brilliant Cape Cape Henry carbon carbonic acid catalogues chemical clouds coal coal-tar color containing Cordaites crystals diameter direction disinfection distance distillation earth eupion experiments fact feet fossil genera genus Göpp Gulf Stream heat horizon inches initial velocity Jour Journal Kämtz latitude Lepidodendron light Lsqx mass matter metal meteor miles mineral motion nearly nebular hypothesis Neuropteris Noble County northern observations obtained Oil-Coal organic oxygen paraffine Pecopteris peculiar phenomena plants portion present produced Prof rays remarkable rifle river seen Semi-minor axis Sept shales Sigillaria solar species specimens Sphenopteris stars Sternb stone strata streamers substances surface Survey temperature theory thickness tion toises Unifilar vapor volatile whole zenith zenith telescope zinc