Miscellaneous Documents: 30th Congress, 1st Session - 49th Congress, 1st Session, Volumen4 |
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Página 17
... appearance of spots on its surface , giving rise to the variations in those perturba- tions of the needle which have been called magnetic storms , and which present a periodical recurrence at an interval of about eleven years . The ...
... appearance of spots on its surface , giving rise to the variations in those perturba- tions of the needle which have been called magnetic storms , and which present a periodical recurrence at an interval of about eleven years . The ...
Página 18
... appearance of the aurora borealis with the disturbances of the direction and force of the earth's magnetism is discussed . From the result of this dis- cussion it appears that there is a periodicity of about eleven years in the ...
... appearance of the aurora borealis with the disturbances of the direction and force of the earth's magnetism is discussed . From the result of this dis- cussion it appears that there is a periodicity of about eleven years in the ...
Página 55
... appearance , under- took to transport it to San Blas , then the nearest port of entry , with the view of carrying it to Spain . With this object it was brought as far as the Presidio , near Tucson , in Arizona , and left there on ...
... appearance , under- took to transport it to San Blas , then the nearest port of entry , with the view of carrying it to Spain . With this object it was brought as far as the Presidio , near Tucson , in Arizona , and left there on ...
Página 126
... appearance , he employed the time of his stay at the Cape in making a new copy , which his friend M. Renard , chief surgeon of the expedition , undertook to convey privately to the representative of France in the United States of ...
... appearance , he employed the time of his stay at the Cape in making a new copy , which his friend M. Renard , chief surgeon of the expedition , undertook to convey privately to the representative of France in the United States of ...
Página 137
... appearance may some day lead to important consequences , they have encouraged the re- search for truth in regard to all objects , with the exclusion of those only which the limits of man's understanding render forever inaccessible ...
... appearance may some day lead to important consequences , they have encouraged the re- search for truth in regard to all objects , with the exclusion of those only which the limits of man's understanding render forever inaccessible ...
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acetic acid acid action alcoholic alcoholic liquid alcoholic mixture ammonia appearance astronomers atoms attraction axis balloon Beautemps-Beaupré become birds California centimetres centrifugal force circular segments coast collection color consequently considerable constriction corresponding curvature cylinder degree diameter dilatation direction disc discharge distance divisions earth electric electrode equal experiments fact feet figure of equilibrium force height hydrogen hydrographic iron la Perouse labors language latter less liquid mass luminous Lussac magnetic manner mass of oil means memoir meridian meters millimeters molecular attraction murexid nature nebula needle nitrogen normal length observations observatory obtained operations phenomena plane plate poles portion positive present pressure produced Professor proportion purple quantity rarefied regard remains ring rotation Smithsonian Institution Society solid system specimens spherical superficial layer surface temperature theory thermometer tion transformation tube ultramarine velocity vessel volume voyage wire