121 



0)ily twice veering to novtli-west, and on two (lays to .south-west. 

 The air was mostly dry, but tliere was a thunderstorm on the 

 7th, 8th, followed by steady rain, about 0-250 inches falling 

 before 3 p.m. of the 8th, and about 1-750 inches, continuous 

 rain lasting from 4 p.m. of the 8th till 9h. a.m. of the 9th, with 

 a high barometer (aneroid 30-20 at 9h. a.m., faUing rapidly to 

 29-85 at 3 p.m. Rain also fell on the 27th, 28th, and 29th, set- 

 ting in on the last date at 3 p.m., and raining heavily with 

 storms during the night (1,600 feet above sea level; aneroid 

 28-50 at 9h. a.m. of the 30th, and 28-20 at 3 p.m.) A white 

 frost on the morning of the 1 1th, the temperature falling to 32°. 



Aneroid. 



.Mean at 9h. 



a.m. ... 29-15 





3h. 



p.m. ... 29-32 

 Temperature. 







Dry Bulb. 



Wet Bulb 



Mean at 9h. 



a.m. ... 61-0 



55-0 



3h 



p.m. ... 73-0 



58-0 



June. 

 During this month the observations were taken regularly, there 

 being but few gaps. The aneroid and the thermometers were 

 read at 9 a.m and 3 p.m., and tlie minimum and maximum tem- 

 peratures were also taken. The expedition travelled from near 

 Mount Illbillie (lat. 27° 3', long. 132° 30') to Camp 11 (lat. 27° 

 28', long. 130° 38'), at elevations varying from 1,950 feet on the 

 1st to 1,700 feet on the 30th. The observations were taken in 

 camp, near Mount Illbillie, on the 2nd, 3rd, 4th, 5th, and 6th, at 

 1,950 feet, and the height of the summit was hypsometrically 

 determined to be 3,010 feet. During these five days the aneroid 

 at the camp at base of hill ranged from 28-10 inches at 9h. a.m. 

 of the 2ncl to 28-40 at 3 p.m. on the 6th, the minimum and 

 maximum temperatures being as under 



Mill. 



June 3 35° 



" 3 37 



" 4 37 



" 5 38 



" 6 33 



On the 3rd, at noon, the aneroid 



28-10 ; the temperature, dry bulb 



humidity, .JJ^- ^* ^^- P-™-> ^* ^'^'^ *'^P °^ *^® mount, the aneroid 

 read 27-12';"dry bulb (thermometer) 61°, wet bulb 51°; relative 

 humidity, y\£L. 



Rain set in after 2 p.m. on the 1st, and showers continued 



Max. 



67° 



69 



54 



56 



55 

 at the base of Illbillie was 

 68°, wet bulb 50°; relative 



