1 9 8 Mr. Fisher on the errors in longitude 
by their removal on shore, the acceleration must have ceased ; 
which will appear upon consideration. 
A similar circumstance was observed by Lieut. Franklin 
to take place with the chronometers on board the Trent, 
which were four in number; and he observes, “ It may be 
“ worthy of remark, that the chronometers taken out by the 
“ Hon. Captain Phipps, showed too great westerly longitude, 
“ and consequently gained on these seas. The fact of so 
ic many chronometers altering their rates the same way, is 
“ curious, but I am not aware that any cause can be as- 
“ signed.” 
The effect produced upon one or two of the chrono- 
meters by their removal to land, was very remarkable ; a 
chronometer made by Baird was (by observations taken on 
shore near where the ships lay at anchor, by Lieutenants 
Franklin and Beechey, with false horizon, and eight inch 
reflecting circles of Troughton, from August 8, A.M. to 
la, P.M.) losing 3, "4, daily when on board; but upon its 
removal on shore to the observatory, its rate per transit, from 
August 16, to 26, was observed by myself to be 18," 2 losing. 
Upon again removing it on board, it was found by obser- 
vation, as before, to be losing 6, "5 daily; from which it ap- 
pears the chronometer lost no less than about thirteen or 
fourteen seconds daily by its removal on shore. 
Another chronometer in the Trent, made by Pennington, 
had been gaining rapidly on board ; when taken on shore, it 
acquired immediately a losing rate of i, #/ 8, nearly the same 
as it had in London before the vessels sailed. 
A chronometer of my own, by Arnold, was affected like- 
wise nearly as much, losing about daily by its removal on 
shore. 
