368 Eighth Memoir on the [No. 137- 



Ther. Bar. Rain Guage. Remarks. 



26th Oct.— 7 a. m. 73° 28.936 Cloudy, with light wind, 



10 a.m. 74° 28.944 Ditto ditto. 



12 p.m. 77° 28.914 Ditto ditto. 



3 p.m. 78° 28.904 Ditto ditto. 



8Jp.m. 76° 28.944 Ditto ditto. 



Official Report by Captain J. Campbell, Assistant Surveyor General. 



1. — From the end of September, the Barometer was observed to have 

 gradually risen daily, which in this situation generally indicates ap- 

 proaching rainy weather, and accordingly on the night of the 12th 

 October, a fall of 2.4 inches of rain took place, the Barometer stand- 

 ing at 27095 inches, having risen from 26.862 inches on the 28th 

 September : both observations being made at 10 a. m. 



2. — From the 12th October, the Barometer gradually fell again until 

 at 10 a.m. on the 23rd October it stood at 26.971 inches, when there 

 was but little wind, clear blue sky and Cirri ; but before noon, the 

 wind had increased from N. E. bringing with it moist air which gradu- 

 ally condensed in Cirro Cumuli, and then Nimbi. In the evening the 

 wind had lulled again, but in the night it again increased in strength ; 

 and at sunrise of the 24th, was blowing strong at N. E. with an over- 

 cast sky, but no signs of rain. At 10 a. m. the Barometer stood at 

 26.927 inch, with the wind falling again, and a little drizzling rain. 

 At 4 p. m. the wind was high at North with drizzling rain. Barome- 

 ter 26.820 inches. About 7 p» m. after dark, wind began to increase 

 with rain from North ; and between 8 and 9 o'clock, had become 

 strong enough to blow in some cracked panes of glass in a window in 

 an exposed situation. Observations of Barometers forgotten in the con- 

 fusion of securing doors and windows for the evidently approaching gale. 

 3. — Early in the morning of the 25th October, the Barometer stood 

 at 



1J a. m. 26.648 inches, gale at its height from the North. Tiles from 

 the houses beginning to fly. Little rain, sky overcast. Thick 

 in East and South ; in North an uncommon light in horizon, 

 as if shining under an arch in a canopy of mist about 2° in 

 altitude above the horizon. 



