Show fil burrs i into the sea in many xu cl d co countries u n ti it s a and n d parish pe r is h b by y dro drowning N v n i n t their h e ir di dismembered s m e m be r e d r remains e m a iu s floating f 0 a t i u 1 away as bergs but their end is by di dis is solution where tho the annual me mean an temperature rises considerably a above atti v e the freezing point at some c certain e r in level they melt faster than they can flow and so terminate the level indeed is a fluctuating one Ael andic glaciers are now steadily advancing van C cing ing swiss glaciers according to M forel have hava undergone during daring the present century five fire alternating periods of diminution and growth the meteorological changes occasion occasioning and emphasized by these oscillations are very slight their character however is is unmistakable and such as might have been anticipated that is to say glacial decrease accompanies a warm and dry cycle glacial increase on one that is damp an and d cold I 1 without one additional degree of cold it is conceivable that a persistently augmented deposit of snow upon the ger sten homer horner and the estock although otherwise scarcely perceptible might enable the rhone glacier to overwhelm brieg but this would be ba an exceedingly small step toward the restoration of a former state of things when pa an ice stream close upon miles in length starting from the same source crossed the frozen or nonexistent lake of geneva and debauched debouched debou ched by upon lyons without severe cold as well as heavy precipitation ice could not possibly have gained so great an ascendancy and this was no local phenomenon it was simultaneously prevalent over widely separated tracts of the earths surface edinburgh review |