Miscellaneous Documents: 30th Congress, 1st Session - 49th Congress, 1st Session, Volumen4 |
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Página 9
... earth , of the velocity of electricity , and of light ; chemical analyses of soils and plants ; collection and publi- cation of scientific facts accumulated in the offices of government . ( 4. ) Institution of statistical inquiries with ...
... earth , of the velocity of electricity , and of light ; chemical analyses of soils and plants ; collection and publi- cation of scientific facts accumulated in the offices of government . ( 4. ) Institution of statistical inquiries with ...
Página 17
... earth's magnetism coinciding with the eleven- year period of the spots on the sun . The fifth relates to the effect of the sun in producing daily and annual variations in the horizontal component of the magnetic force . The sixth ...
... earth's magnetism coinciding with the eleven- year period of the spots on the sun . The fifth relates to the effect of the sun in producing daily and annual variations in the horizontal component of the magnetic force . The sixth ...
Página 18
... earth , while the vibrations of a similar bar placed in the plane of the dip , and poised horizontally like a scale - beam on two knite - edges , gives the variations in the vertical force . These vibra- tions , however , will be ...
... earth , while the vibrations of a similar bar placed in the plane of the dip , and poised horizontally like a scale - beam on two knite - edges , gives the variations in the vertical force . These vibra- tions , however , will be ...
Página 19
... earth is greatest at half - past 12 and 11 , and least at 7 and 17 hours , the results , from the observations at Toronto and Philadelphia , being remarkably coincident . The next paper of the foregoing list is that by Dr. Dean , which ...
... earth is greatest at half - past 12 and 11 , and least at 7 and 17 hours , the results , from the observations at Toronto and Philadelphia , being remarkably coincident . The next paper of the foregoing list is that by Dr. Dean , which ...
Página 26
... earth and overgrown with trees ; human remains , or implements of human manufacture , bearing the marks of tools or of subjection to fire , found in caves , beneath deposits of stony material formed by drop- pings from the roof ...
... earth and overgrown with trees ; human remains , or implements of human manufacture , bearing the marks of tools or of subjection to fire , found in caves , beneath deposits of stony material formed by drop- pings from the roof ...
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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