 | 1760 - 556 ページ
...morning. The diurnal Varir.tion is trrtgt'lar, when the Needle moves flowly eaftward in the latt-r p.'ft of the morning, or weftward in the latter part of the afternoon ; alfo when it moves much either way in the night, or fu.idcnly both ways in a fliort time. Thefe irregulariti'? happen feldom, and are... | |
 | George Adams - 1787 - 600 ページ
...that the variation \vefhvard was decreasing, and the needle came back again to it's former ikuation in the night, or by the next morning. THE DIURNAL VARIATION is IRREGULAR WHEN THE Nr.EDLE MOVES SLOWLY EASTWARD, IN THE .LATTER PART OF THE MORNING, OR WESTWARD IN THE LATTER PART OF... | |
 | John Lorimer - 1795 - 72 ページ
...next morning, it is regular. But he calls it irregular when the needle moves eaftward in the hotter part of the morning, or weftward in the latter part of the afternoon ; alfo when it moves either way in the night, or fuddenly, viz. when it moves both ways in a fhort fpace ef time. The caufes... | |
 | 1795 - 690 ページ
...variation .weftward was decrciifmg, and the needle came back a«ain to it's former fituation, or nearly lo, in the night, or by the next morning. The diurnal variation is irregular when the needle mores llowly ealiward in the latter part of the morning, or weftward in the latter part of the afternoon;... | |
 | Royal Society (Great Britain) - 1809 - 778 ページ
...variation westward was decreasing, and the needle came back again to its former situation, or near it in the night, or by the next morning. The diurnal variation is irregular when the needle moves slowly eastward in the latter part of the morning, or westward in the latter part of the afternoon... | |
 | 1817 - 728 ページ
...variation Westward was decreasing, and the needle came back again to its former situation, or near it, in the night, or by the next morning ! The diurnal variation is irregular when the needle moves slowly Eastward in the latter part of the rooming, or Westward in the latter part of tne afternoon... | |
 | Sir Richard Phillips - 1830 - 728 ページ
...variation westward was decreasing, and the needle came back again to its former situation, or near it in the night, or by the next morning. The diurnal variation is irregular when the needle moves slowly eastward in the latter part of the morning, or westward in the latter part of the afternoon... | |
 | 510 ページ
...variation westward was decreasing, and the needle came back again to its former situation, or near it, in the night, or by the next morning. The diurnal variation is irregular when the needle moves slowly eastward in the latter part of the morning, or westward in the latter part of the afternoon... | |
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... became stationary for some time ; after that, the absolute variation westward was decreasing, and the needle came back again to its former situation, or near it, in the night, or by the next morning. The diurnal variation is irregular when the needle... 