116 Aqueous Vapour Atmosphere. 
afterwards the road descends straight into the 
former, but turns to the right and ascends 
again.to the latter, close under Great End, 
till it arrives at the green summit above- 
mentioned ; after which it descends towards 
Langdale, 
Ht.above Wast- Temp. 
water Lake, in Temp. Dew- of 
yards. - of air. point. Water. 
8 ca aah yearn 390 
Ai ts 991-:42.[ 6 eee = Le ove SaEe She 
Head: aSpring GO" fog. 98 * 
9 ..... Stye-Head ....450........6Ofoggy. 
O2c si... Manas} 
At this place the sun shone, and the tops 
of the mountains were clear; but a body of 
fog was seen to ascend up the gap at Stye- 
head, out of Wasdale, where meeting with the 
sun’s rays and spreading onan extended plane, 
it gradually wasted away. So that a volume 
of fog was pouring out incessantly for an 
hour or more, like a dense cloud; but if any 
particular parcel of it was pursued by the 
eye, it was found to vanish or dissolve in the 
space of a few hundred yards. It resembled 
the jets of vapour from a steam-engine boiler 
into the air. o 
