SOUTHERN JOURNEY 



Date. 



Geographi- 

 cal miles. 



Noon 

 latitudes. 



statute 

 miles. 



Yards. 



Relay. 



1909. 



February 22 



February 24 



February 25 (blizzard) 



February 26 (left A. and M.) . 



February 27 



February 28 



March 1 



March 2 



March 3 



March 4 







20 

 20 

 14 

 15 



no march 

 24 



39 



63 

 30 out 

 33 back 



800 

 500 





adjusted before the start for the southern journey. An 

 observation taken on the return journey, in February, 

 when the position was known from bearings, showed that 

 the instrument was correct. The observations were only 

 taken with the theodoHte "face left," but as the instrument 

 was in good adjustment this was sufficient. 



On the outward journey the last latitude observation 

 was taken in latitude 87° 22' South. The remainder of the 

 distance marched towards the south was calculated by 

 sledge-meter and dead reckoning. The accuracy of the 

 sledge-meters used was proved by the fact that on the 

 return journey we were able to pick up the depots without 

 taking observations. The " slip " was ascertained by care- 

 ful tests before the start of the journey. 



The chronometer watches taken were rated before 

 leaving and on the return, and the error was only eight 

 seconds. All bearing, angles and azimuths were taken 

 with the theodohte. Variation was ascertained by means 

 of a compass attached to the theodolite, and the steering 

 compasses were checked accordingly. At noon each day 



Vol. n.— 28 433 



