ae eee, 
~~ 
“ins » i» ae’ 
Aqueous Vapour Atmosphere. 119 
Ht. above the Temp. 
adjacent valley Temp. Dew- of 
& lake, in yds. of air. point. Water. 
52 P. M. Summit ........ SoG tea: a 409, Sucks — 
ee eee Brownrigg- 
Miata i PMTs ccnctem— svoncaes 4A wee 42° 
a Do.descending —........ beens 43 or 44— 
4 P.M.Another Spring 500........ be Ares AG setae 44 
SPR sia as Do.descending —......51 we et — 
——— Another place 300........ eS 45 or 46— 
7to8 Inthe Valley  0........ 60to62 50 ....... — 
July 6. Morning. In the Valley ............ ey igs ta. — 
—0.m0— 
1820.— Observations on Helvellyn. 
July 17th.—Day gloomy: some drops: 
when on the summit a thick gloom above 
and flying clouds: wind N. E. strong. 
Ht. above the Temp. 
adjacent valley Temp. Dew- of 
& lake, in yds. of air, point. Water 
41 P.M. Summit........ LAS ae) ae: ye 
<] ae A Spring .... 500........ 5B a. BO shee 45° 
Ne 4 Brownrigg- \ 
Well, ascendg. (eS 25) He ssl RO casene ce 43 
Bivstes hii Do. descendg. ui.e.55 sees 1: —_ 
Another place 4 or 500........56 secs 53 siseases — 
Fi... Inthe Valley — 0......,65 wee. 54 s..0dt — 
N. B.—The fog came down the mountain after me, but 
not so as to overtake me. It was half down the hill in the 
evening; and at 8 P.M. raining, with thermometer 60° 
