MAGNETIC OBSERVATIONS. 



86 



Cache, on old Floe, Smith Sound. 

 Observations for magnetic declination, May 23 (A. M.) 18G1. I. I. Ilaycs, observer. 



Bearings of the sun.' 

 Pocket chronometer, May 30, Port FouUie, Ar= + 1" 12™ IT' 

 6T= — 2^5, + IT 



May 28, Port FonllvC, A T = + 1 12 34 

 Diflference of longitude, + 28 



A T Cache, 



sun (J) bears 



At 9" SG"" 80' 



+ 1 13 02 



650 22' 



10 



13 



27 



10 



15 



07 



10 



19 



06 



Mean 10 15 63 



P. chron'r, aT + 1" 13" 02= 

 Observed time, 9 56 80 



75 30 



76 85 

 76 15 



76 07 



Meantimeof ob's, 11 09 32 

 E + 3 29 



11 13 01 



+ 1" 13" 02= 

 10 15 53 



M,=— 21° 09' 55" 

 A^= 168 50.3 



B^== 65 22.0 



+ 3 29:Mag.decl'n,= + 125 47.7 



11 28 55 



11 32 24 i 



Weight 1 



If = 79° 30' 

 ^ = 4" 51" 32= 



«i = 20° 45' 27" 



S„=20 45 37 



Jlf,,=— 20° 53' 56" 

 ^„= 173 26.6 



.B„= 76 07.0 



Mag. decl'n, = + 110 26.4 

 Weight 3 



Magnetic declination, = -p 114° 17' or 113° 52' when corrected for diurnal variation. 



Seouse Camp, Smith Sound. 



Observations for Magnetic declination. May 28 (24th, midnight), 1861. I. I. Hayes, observer. 



Bearing of the sun. 



Pocket chronometer A r + T' 13 02 

 Observed time (J) 40 00 



Mean time of obser'n (23d), 13 58 02 

 E + 3 29 



t 13 56 31 



Magnetic bearing of (j) 

 Magnetic declination. 



t =79'' 29' 

 ^ = 4h 5im 32= 



8 = 20° 46' 42 

 Jf= — 23 28.7 



A= 207 40.5 

 40 35.0 

 + 111 44.5or + 112°06' wnencor'dfor diur'l var'n. 



Potato Camp, Smith Sound. 



Observations for magnetic declination, May 24 (P. M.), 1861. I. I. Hayes, observer. 



Bearing of the sun. 



P. chr. May 30, Port Foulke aT= + l"" 12" 17' 

 6r= — 2'.5 + 14 



May 24, Port Foulke a T 

 Difference of longitude, 



A T Potato Camp, 

 Observed time (J) 



Mean time of observation, 



E 



t 7 51 56 



+ 1 



12 



31 



+ 



2 



00 



+ 1 



14 



31 



6 



34 



00 



7 



48 



81 



+ 



8 



25 



79 



° 04 



4" 



50"" 



20054' 57" 



39 



9.8 



121 



07.4 



138 



30.0 



M = 



Mag. decl'n, + 105 23 or 105o 34' when cor- 

 rected for diur'l var'n. 



» An observation at Small berg Camp, on the morning of the same date, was found erroneously 

 recorded, and has therefore been omitted. 



