The American Journal of Science and Arts, Volumes 93-94S. Converse, 1867 - Science |
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Page 9
... tion over the spectrum . The conviction that precise knowledge of these and similar points must depend upon a knowledge of wave lengths and not merely of indices of refraction , has led me to make this first attempt to form a normal map ...
... tion over the spectrum . The conviction that precise knowledge of these and similar points must depend upon a knowledge of wave lengths and not merely of indices of refraction , has led me to make this first attempt to form a normal map ...
Page 13
Encke has also , as already mentioned , devoted special atten- tion to the subject of the perturbations of the Minor Planets . In the Appendix to the Berliner Jahrbuch for 1837 and 1838 , he expounds in detail the method of calculating ...
Encke has also , as already mentioned , devoted special atten- tion to the subject of the perturbations of the Minor Planets . In the Appendix to the Berliner Jahrbuch for 1837 and 1838 , he expounds in detail the method of calculating ...
Page 86
... tion of the meteor , being in nine minutes at least 17 miles , and probably about 20. It was evidently due to a current in the at- mosphere , whose velocity was about 125 miles per hour . The material of the meteor must have been ...
... tion of the meteor , being in nine minutes at least 17 miles , and probably about 20. It was evidently due to a current in the at- mosphere , whose velocity was about 125 miles per hour . The material of the meteor must have been ...
Page 95
... tion is complete , when the liquid has exchanged its green color for the yellow of the solution of gold , ( it is the same with MnBr3 and MnI2 ) . * On evaporating the liquid , a film of gold adheres to the vessel . The same solution ...
... tion is complete , when the liquid has exchanged its green color for the yellow of the solution of gold , ( it is the same with MnBr3 and MnI2 ) . * On evaporating the liquid , a film of gold adheres to the vessel . The same solution ...
Page 112
... tion , consisting of numerous analyses of coals , iron ores , & c . , chiefly the former , with classifications and descriptions of the same . The remaining portions of the volume consists of detailed county Re- ports as follows : -On ...
... tion , consisting of numerous analyses of coals , iron ores , & c . , chiefly the former , with classifications and descriptions of the same . The remaining portions of the volume consists of detailed county Re- ports as follows : -On ...
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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