382 The Chronometers. [March, iseo. 



The day following, Hall succeeded in discoverino- the tracks of 

 the missing dogs, brought them all in, and made up an equal team 

 for each sledge. He was tempted to follow the Innuit preventative of 



Anothei- way of gaining the same result. 



The difterence of the 2 clirouom. ou 1st comp'ii(19th) C' 0™ 54' 



The difference of the 2 chronom. present date (5 



54 



Eggert's loss in the interval 4'i.l271 (X 28.6 losing per d.) 118<^.0;5' 



Ward's loss in the interval 4 .1871 (X 15.85 losing per d.) 65 .41 



52.62 



1.38 

 Thus the difference in the results between computing the rate of Eggert's alone and apply- 

 ing it to Eggert's as the standard, and that of computing the rate of both and applying them to 

 each respectively, is only about one second and a half, or, as above, 1».38. 



Without noticing the few seconds in the rates of the chronometers in the interval from 

 ix*" 25™ a. m. to 2"^ 6™ p. m. (both by Ward), I will proceed to compute for the apparent time of 

 sunrise this morning to this latitude, which is N. 66° 32'. 

 Let the basis be ix"" 25™ a. m. by Ward, the time when the sun had ^ its disk above 



the hill to the southward Sc eastward or astronom. time 22'' 21'^ 25'" 0" 



Ward slow on M. T. Ft. Hope 7 6 



Astronomical time Fort Hope 22 21 32 6 



Add long, of Fort Hope W. of G v 47 44 



GreenwichM.T 23 3 19 50 



Equation 13 18 



Greenwich ajjparent time 23 3 33 08 



Without going through the whole process, I will simply state that the result is the approxi- 

 mate hour angle of the sun's rising, which is 2'' 3"" 12« or ix'' 56™ 48' a. m. apparent time. Now 

 for precision take this latter time and work out the time the sun'.s centre would be on the sea 

 horizon if there were no atmos^jhere, or, in other words, if there were no refraction: 



ix''56™48»a. m. of 23d, civil time, or 22'' 21'> 56™ 48* 



Fort Hope, diff. of long. W. of G v 47 44 



G. app. time 23 3 44 32 



(23-3.74) 

 «. Dec. (23d.) 20° 25' 2;;.5" 31". 01 per h. 



1 r;5.97 



S. 20° 27' 22.6" 



3' .74 



11.5.977.4 



1.55.97 



Lat. 66^32', tang .. 10.362.384 

 S.Dec. 20O27i, tang.- 9..571.774 



Cosine 9.934.158 



2h 3ra 2» hour angle. 



ix 56 58 a. m. 

 Time .ai)f)arciit hiiu's centre on the horizon not allowing any refniclion." 



