The clock was tried next on a wooden box filled with sand and gravel, but worked 

 even less satisfactorily here, so was replaced on the wall on August 9th. From the 12th 

 to the 21st, the clock kept a very even rate, but stopped on the latter date for some 

 unknown reason. From August 24th to September 2nd, it kept a fair rate and was 

 put out of commission on September 3rd. 



It is unfortunate that, during the first two series of observations at Cape Evans, 

 a more regular comparison was not made between " S.C." and " E," as later " E " was 

 found to have an extraordinarily constant rate. During 1912, the total range in its 

 rate was from 0-2 sec. to +0-2 sec. per day. In order to gain a fair idea of the 

 value that can be put on the comparison with " E," the daily difference " S.C." gaining 

 on ' ; E " per 24 hours mean time is put down for the days when it was working 

 satisfactorily. 



It has been mentioned that a value of the rate of " : E " was obtained from observa- 

 tions of stars east and west : this furnished an indirect means of checking the accuracy 

 of the daily rates of " S.C." as determined by myself with the portable transit instrument 

 lent to the Expedition. 



Juno 22-23 " S.C."- ci E " 237-0 sees, in 21 hours. 



23-24 237-1 



24-25 237-3 



25-26 236-5 



26-27 236-6 



27-28 235-7 



28-29 235-8 



29-30 ... 236-4 



June 30-July 1 236-1 ., 



1-2... 236-1 



2-3 236-7 



3-4 233-0 ., Blizzard starts. 



4-5 232-0 



5-6 232-0 



6-7 ... 231-9 



7-8 232-2 



8-10 232-0 



10-11 ... 231-4 



11-12 230-5 Blizzard starts. 



12-13 ... 230-2 



13-14 230-2 



14-15 229-6 



24-25 243-0 



25-26 242-6 



26-27 212-9 



27-28 ... 243-3 



28-29 243-5 



29-30 243-6 



31 



