The American Journal of Science and Arts, Volumes 93-94S. Converse, 1867 - Science |
From inside the book
Results 1-5 of 100
Page 2
... present condition of science furnishes for the construction of a chart of the spectrum upon the princi- ple laid down are not very copious . They consist essentially of the older measurements of Fraunhofer of the wave lengths of the ...
... present condition of science furnishes for the construction of a chart of the spectrum upon the princi- ple laid down are not very copious . They consist essentially of the older measurements of Fraunhofer of the wave lengths of the ...
Page 4
... present be found for the lines between A and B , or between B and C , on account of the absence of the requisite measurements . TABLE III . Wave Length . Difference . Kirchhoff's Scale . Wave Length . 700 655 05 800 630.30 10 652.35 ...
... present be found for the lines between A and B , or between B and C , on account of the absence of the requisite measurements . TABLE III . Wave Length . Difference . Kirchhoff's Scale . Wave Length . 700 655 05 800 630.30 10 652.35 ...
Page 7
... present avail- able for the determination of wave lengths , because the lines upon them beyond G have not yet been identified with lines whose wave lengths have been measured . The very numerous measurements of Mr. Huggins * give the ...
... present avail- able for the determination of wave lengths , because the lines upon them beyond G have not yet been identified with lines whose wave lengths have been measured . The very numerous measurements of Mr. Huggins * give the ...
Page 9
... present time it is difficult to institute such a comparison for the reason that we do not know all the lines which are produced by any one element . For the same reason it would probably be impossible at present to determine whether ...
... present time it is difficult to institute such a comparison for the reason that we do not know all the lines which are produced by any one element . For the same reason it would probably be impossible at present to determine whether ...
Page 14
... present wants of the sciences . " On presenting the medal , Sir James South , the President , adds , " With the Berlin Ephemeris , an observatory scarcely wants a single book ; without it , every one . " It would , however , be dis ...
... present wants of the sciences . " On presenting the medal , Sir James South , the President , adds , " With the Berlin Ephemeris , an observatory scarcely wants a single book ; without it , every one . " It would , however , be dis ...
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alcohol ammonia analysis angles appear atoms axis beds boiling point carbon Carboniferous cavern cent characters chemical chlorid Coal-measures color comet compound containing copper Cretaceous crystals decomposed density deposits described determined diameter distillation earth Eocene ether ethyl examined fact feet formation formula fossils fractionated distillations Geinitz genera genus Geological give heat hydrochloric acid inches infusoria iron JOUR kaolin kaolinite latitude latter less light limestone liquid longitude mass mean meteoroids meteors method mica miles mineral Miocene nacrite nearly observed obtained orbit oxyd oxygen Paleontology Permian photosphere plane plates portion present probably Prof quantity ratio referred regard remarkable river rocks salt sandstone SCI.-SECOND SERIES seen shell silicic acid silicic ether silicium Silurian solar solution species specimens spot strata Substance sulphate sulphuric acid surface temperature thickness tion tube upper vapor weight XLIII