NO. 6.] 



SLEDGE EXPEDITION. OBSERVATIONS 1895. 



123 



The sailing lasted from 3 p.m. to 8 p.m. and was followed by dragging over a belt of ice; 

 estimated distance about 10 miles. The course seems to have been nearly true SW. Assuming 

 the distance between the two sets of observations to have been 5 miles, the change of latitude 

 would be 3'.5, and of east longitude 24' = 1m 36 s , which gives & = 30' nearly, and for 

 the south side of Adelaide Island 



N. Lai = 81 37'.7. 



For the afternoon observations <p would then be 81 34' or 4<p = 1', and 

 LT-I = 4h 10< 19 S> E. Long. 4^ 7 7 - 4= 61 47' - J. 



1895, August 10. Bar. 758.4 mm, Temp. - 3.6. Height of eye 6 feet, Ind. corr. (0?). 

 Meridian altitude Sun L. L. 23 56'; N. Lat. = 81 30'. 



After rowing and dragging from 1 p.m. to 10 p.m. in a south-westerly direction (estimated 

 distance 8 10 miles) the following Lunar Distance was taken: 



Watch I 7h 25^ 29s, Sun and Moon 122 37'; Bar. 758.2 mm, Temp. - 5.3. 

 Assuming Ind. corr. as the day before, N. Lat. 81 25', LT I = 4 h 5 m , the result is 



I-Gr. = - Oh ll<n.8 



while the table p. 112 has O h 3 m .O 4. As the Ind. corr. was not determined on the same 

 occasion, and only a single distance was taken (the Moon disappeared during the observation) 

 the result was not considered sufficiently accurate for a determination of d. An index correction 

 of + 4' would give accordance, with d = 0. 



1895, August 16. On Houen Island. Bar. 758.5 mm, Temp. - 1.5. 

 Hor. Point of Circle = 89 51' + x, LT-I = 3h SO" -f ^ <9. 



where may probably be neglected. 



1895, August 17. On the ice off Cape Brogger. Bar. 753.5 mm, Temp. - 1 . Hor. Point 

 ass. 89 51'. 



A correction of + 10' has been applied to the circle reading of the fourth observation. 

 The assumed latitude, 81 30', is somewhat uncertain. On the preceding day and night the 

 travellers were walking and rowing first NW, and then nearly west, but from Cape Felder the coast 



