 | 1837 - 594 σελίδες
...at each station should commence at 6 o'clock AM of the appointed days, and terminate at 6 o'clock PM of the days following, according to the usual reckoning...by some observation of an astronomical nature, by * This is necessary by reason of the want of coincidence of the day in different parts of the globe,... | |
 | 1837 - 970 σελίδες
...registered hourly, and the precise hour and minute of each reading should be especially noted. 4>For obvious reasons, however, the commencement of every...accompanied by a notice of the means used to obtain ihe time, and, when practicable, by some observation of an astronomical nature, by which the time can... | |
 | Royal Society (Great Britain) - 1839 - 94 σελίδες
...at the place. The commencement of each hour should be chosen, and every such series of observations accompanied by a notice of the means used to obtain...of an astronomical nature by which the time can be ascertained within a minute or two. The Council now propose to extend these observations in regular... | |
 | Royal Society (Great Britain) - 1840 - 164 σελίδες
...at the place. The commencement of each hour should be chosen, and every such series of observations accompanied by a notice of the means used to obtain...of an astronomical nature by which the time can be ascertained within a minute or two. Travellers provided with meteorological instruments who may be... | |
 | Royal Society (Great Britain). Committee of Physics and Meteorology - 1840 - 156 σελίδες
...at the place. The commencement of each hour should be chosen, and every such series of observations accompanied by a notice of the means used to obtain...of an astronomical nature by which the time can be ascertained within a minute or two. Travellers provided with meteorological instruments who may be... | |
 | 1847 - 1262 σελίδες
...should be read off and registered hourly, or at all events at intervals not more than two hours asunder, and the precise hour and minute of each reading should...can be independently ascertained within a minute or two.t As there is scarcely any class of observations by which meteorology can be more extensively and... | |
 | 1853 - 830 σελίδες
...at the place. The commencement of each hour should be chosen, and every such series of observations accompanied by a notice of the means used to obtain...of an astronomical nature by which the time can be ascertained within a minute or two. The Committee now propose to extend these observations in regular... | |
 | 1839 - 1198 σελίδες
...at the place. The commencement of each hour should be chosen, and every such series of observations accompanied by a notice of the means used to obtain...of an astronomical nature by which the time can be ascertained within a minute or two. The Council now propose to extend these observations in regular... | |
 | 1837 - 450 σελίδες
...at each station should commence at 6 o'clock AM of the appointed days, and terminate at 6 o'clock PM of the days following according to the usual reckoning...can be independently ascertained within a minute or two.* As there is scarcely any class ot observations by which meteorology can be more extensively and... | |
 | 1830 - 700 σελίδες
...be read off and registered hourly, or at all events, at interval? not more than two hours asunder, and the precise hour and minute of each reading should...can be independently ascertained within a minute or two. As there is scarcely any class of observations by which meteorology can be more extensively and... | |
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During this interval, the barometer and thermometer should be read off, and registered hourly, and the precise hour and minute of each reading should be especially noted. '•For obvious reasons, however, the commencement of every hour should if practicable,... 