APPENDIX. 

 " This watch was exceedingly ufeful to us In our obfer- 

 " vations on land, as the other time-keepers could not 

 " fafely be moved : and indeed, in the prefent voyage, 

 " where they were on trial, it was contrary to the intent 

 " for which they were put on board, and might have been 

 " attended with accidents by which the rate of their going 

 " might have been greatly affeded. 



" The longitudes by" Mr. Arnold's larger time-keeper 

 " are very different from thofe by the watch in our voyage 

 " back from Spitfbergen to England ; owing, probably, to 

 " the balance-fpring being rufted, as we found when it 

 *' was opened at the Royal Obfervatory at Greenwichj 

 " on our return. 



" The longitudes found by the Moon are deduced from 

 " diftances of the Moon from the Sun's limbs, or from 

 " Stars, taken with the fextant ; whilft the altitudes of 

 " the Moon and Sun, or Star, were taken by two other 

 " obfervers. 



" In one inftance (June 26th) the obfervatlons were all 

 " made by Captain Phipps with the fmall fextant fuc- 

 ** ceffively ; and the altitudes of the Moon and Sun at the 

 " very inflant the diftances were obferved, are deduced 

 " from the changes in thefe altitudes during the interval 

 "of obfervation, 



** I have 



231 



