 | Royal Geographical Society (Great Britain) - Electronic journals - 1836 - 538 pages
...vessels has strengthened my conviction that temperature is the chief, if not the only, cause (generally speaking) of marked changes of rate. The balances...compensated as to be proof against a long continuance o! higher or lower temperature. It often happens that the air in port, or near the land, is at a temperature... | |
 | John Purdy - 1845 - 562 pages
...chief, if not the only, cause, generally speaking, of marked changes of rate : and the balances of few watches are so well compensated as to be proof...different from that over the open sea in the vicinity. Hence the difference sometimes found between harbour and sea rates. " The changes so frequently noticed... | |
 | John Purdy - 1853 - 614 pages
...the chief, if not the only, cause, generally speaking, of marked changes of rate: and the balances of few watches are so well compensated as to be proof...different from that over the open sea in the vicinity. Hence the difference .sometimes found between harbour and sea rates. " The changes so frequently noticed... | |
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... concussion. Frequently employing chronometers in boats, and in very small vessels, has strengthened my conviction that temperature is the chief, if not the only cause (generally speaking) of marked changes of rate. The balances of but few watches... 