Geology. e oe 
_ the lowest shilling, after becoming sunk in the ice, was found firmly at- 
tached to it. eA * 
2. Mere contact, without pressure, is sufficient to produce these ef- 
fects. Two slabs of ice, having their corresponding surfaces ground toler- 
ably flat, were suspended in an inhabited room upon a horizontal glass 
the cohesion was so complete, that, when violently broken in pieces, many 
ty or more 
Square inches) continued united. In fact, it appeared as complete as in 
g state. : 
4. Water being carefully frozen into a cylinder atts inches long, 
mission, that Person’s view of 
(Comptes Rendus, 1850, vol. xxx, p 
ice. 
Let AB be 
hysical surface of the ice between AB and a 
2 viscid water, having the most rapid variation 
re. * * a 
f temperature, though it is in one sense permanent, 
: oo ceee Of iets "Boilies of different temperatures can- 
nue so without interaction. The water must give off heat to the 
it it spends it in an insignificant thaw at the surface, which therefore 
* Quoted by me in 1861, in my sixteenth letter on Glaciers. 
