Proceedings of the American Academy of Arts and Sciences, Volumen2Metcalf and Company, 1852 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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... 18 Leonis . " The positions are referred to the mean equinox of Jan. 1st , 1848 . " This comet is remarkable for the length of time during which it VOL . II . 1 78585 was visible , it having been discovered in July , PROCEEDINGS ...
... 18 Leonis . " The positions are referred to the mean equinox of Jan. 1st , 1848 . " This comet is remarkable for the length of time during which it VOL . II . 1 78585 was visible , it having been discovered in July , PROCEEDINGS ...
Página 4
... position in regard to Saturn . " The next night favorable for observation was the 18th , and , while comparing the relative brightness of the satellites , the same object , similarly situated in re- gard to the planet , was again ...
... position in regard to Saturn . " The next night favorable for observation was the 18th , and , while comparing the relative brightness of the satellites , the same object , similarly situated in re- gard to the planet , was again ...
Página 85
... position . The first was the principal experiment bearing on this point made at the date of my last letter to the Water - Commissioners , and up- on this experiment , and the known solubility of the nitrate , I ascribed the increased ...
... position . The first was the principal experiment bearing on this point made at the date of my last letter to the Water - Commissioners , and up- on this experiment , and the known solubility of the nitrate , I ascribed the increased ...
Página 88
... positions : - " 1st . Well waters contain more air in solution than lake , river , and pond waters , as a class . 2d . Sunlight and heat falling upon water con- taining solid insoluble substances , organic tissues , or pulverulent mat ...
... positions : - " 1st . Well waters contain more air in solution than lake , river , and pond waters , as a class . 2d . Sunlight and heat falling upon water con- taining solid insoluble substances , organic tissues , or pulverulent mat ...
Página 89
... position I have verified by a series of observations , to which I will here only refer . " The following experiment may be mentioned in this connection . Two clear glass globes of about four and a half inches in diameter , filled with ...
... position I have verified by a series of observations , to which I will here only refer . " The following experiment may be mentioned in this connection . Two clear glass globes of about four and a half inches in diameter , filled with ...
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Página 136 - Similar phenomena occur on several of the Swiss lakes. Professor Mather, who observed the barometer at Copper Harbour during one of these fluctuations, remarks : — " As a general thing, fluctuations in the barometer accompanied fluctuations in the level of the water ; but sometimes the water-level varied rapidly in the harbour while no such variations occurred in the barometer at the place of observation." As a general rule, these variations in the water-level indicate the approach of a storm,...