 | 1819 - 480 Seiten
...ships. On the passage home I also found it very correct in the indication of the winds and weather." An opportunity of trying the Sympiesometer in a very...no occasion for it ; but, take it altogether, in my opinion it surpasses the mercurial barometer as much as the barometer is superior to having none at... | |
 | 1819 - 480 Seiten
...have been published in Captain Ross's Account of the Expedition, and will enable navigators to fonn a correct estimate of the relative value of the two...no occasion for it ; but, take it altogether, in my opinion it surpasses the mercurial barometer as much as the barometer is superior to having none at... | |
 | 1819 - 478 Seiten
...report upon the Synu piesometer : " This instrument acts as a marine barometer, and is certain* ly not inferior in its powers. It has also the advantages...no occasion for it ; but, take it altogether, in my opinion it surpasses the mercurial barometer as much as the barometer is superior to having none at... | |
 | 1819 - 482 Seiten
...official report upon the Sympiesometer : " This instrument acts as a marine barometer, and is certain, ly not inferior in its powers. It has also the advantages...no occasion for it ; but, take it altogether, in my opinion it surpasses the mercurial barometer as much us the barometer is superior to having none at... | |
 | 1821 - 624 Seiten
...the Marine Barometer, when it is better known." Lieutenant Robertson, in a letter to the Honnourable Captain Napier of Merchistoun, has spoken of it in...no occasion for it ; but, take it altogether, in my opinion it surpasses the mercurial barometer as much as the barometer is superior to having none at... | |
 | John Purdy - 1845 - 562 Seiten
...ships. On the passage home, I ^ found it very correct in the indication of the winds and weather." the Marine Barometer. In short, the barometer is of...that of being too sensible of small changes, which may frighten a reef in, when there is no occasion for it ; but, taking it altogether, in roy opinion,... | |
 | John Purdy - 1853 - 614 Seiten
...Northern Expedition of 1818, has said of it, " The simpiesometer is a most excellent instrument, and shows the weather far better than the marine barometer....that of being too sensible of small changes, which may frighten a reef in, when there is no occasion for it ; but, taking it altogether, in my opinion,... | |
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Lieutenant Robertson, in a letter to the Honourable Captain Napier of Merchistoun, has spoken of it in the following manner : " The Sympiesometer is a most excellent instrument, and shews the weather far better than the Marine Barometer. In short, the... 