October Gt-h, 1911 continued. 



8 a.m. Temperature zero F. Barometer 28-38". A little blue sky to tlie W. The cloml is 

 the extension of that spreading yesterday from the E. 



10 a.m. No change in the weather. Still overcast and sno\v changed to granular. 



12.30 p.m. Slight snow. X. airs and X.E. airs. Sun just breaking through in the W.N.W. 

 Barometer 28 38". Temperature + 4 F. 



2 p.m. Clouds breaking from time to time. Snow stopped. N. airs. 



6 p.m. Northerly airs beyond the cape. Calm in the bay behind the ice tongue. 15. 1 C. 9. 



Clear N.E. to N.W. along the horizon. Inclined to clear a little to the \V. also. 



7.30 p.m. Slight granular snow and Northerly airs. The Stratus cloud is settling dow.i 

 thicker. 



8 p.m. Temperature -- 12-1 F. Barometer 28-41". 



October 1th, 1911. 



SIEEN BAY TO WHALEBACK CLIFFS. 



6.20 a.m. Temperature + 11-2 F. Barometer 28-46". Bank of mist between us and Cape 

 Adare. Cirro-cumuliform Scud moving from the S.E. and gradually dissipating. Calm. 



S.S.E. airs outside. In the bay S.S.W. breeze. Force 1 to 3 carrying drift. Drift 

 low and large-grained and just creeping along. 



Sastrugi in the bay show that this wind distribution is common. 



General deductions on Siren Bay weather from the sastrugi : 



W.N.W. and E.S.E. sastrugi at the entrance, a zone immediately inside has blocks from 

 an ice avalanche with sastrugi well marked in two series at right angles to each other 

 one runs E.S.E. and W.N.W. and the other S.S.W. and X.X.E. 



They are due to E.S.E. and S.S.W. winds respectively. Inside the Bay the sastrugi 

 are SSW and NNE. At the back of the bay there are no sastrugi but soft drifts with 

 their central point at W.S.W. This last direction is the trend of the valley nuinin- 

 back behind the bay. 



9 a.m. Bright sun. Calm. Clouds as before. 



9 a.m. Out beyond the bay (Siren Bay). 



Southerly airs here ; I believe there is wind in the bay (Robertson Bay). 

 Barometer 28-35". Temperature -2-0 F. 



11 a.m. Clearing to the E. Cape Adare beginning to show through. Cold northerly airs. 



Scud and Stratus to the N.W. and W. Also between us and Cape Adare. 



C p.m. Temperature 11-0 F. Barometer 28-37". Thermometer No. 53. X.P.L. 10. 

 Barometer Xo. 12. 



Sunday, October 8th, 1911. 



WHALEBACK CLIFFS TO SIREX BAY. 



7 a.m. Temperature 11-5 F. Barometer 28-01". B. 9 C.I. Stratus and Alto Stratus 



round the horizon. Bright sun. 



lla.m. Barometer 28-59". Temperature -- 10-8 F. Sky clouding over from the N. N.W. 

 airs. Stratus to the S.W. 



3 p.m. Granular snow falling with S.W. airs. B. 5 C. 5. Stratus and Cirro-cumulus clear 



round the zenith. Clouds over Cape Adare. 



4 p.m. Stratus cloud rising from the X. with a fringe of Cirro-cumulus and movinu from the 



N.W. Light X.W. airs. Bright sun at intervals. Heavy cloud to the S. Cape Adare. 

 which has been visible most of the day, is almost blotted out. 



5 p.m. Barometer 28-54". Temperature 2-0 F. The sky has become completely overcast. 



Calm here. 



699 



