Rocks and headlands are interesting both as natura objects and as historical monuments. From the earliest ages of Biblical antiquity, to the latest events of these railroad times, the rocky ramparts and summits of the hills have been associated with human passions and emotions, and have been the scenes of great conflicts and stirring vicissitudes. On the rocky heights of Sinai, amid the awful tumult of the elements, Moses received the tables of stone from the hands of the Lord; at Horeb, while the hurricane whirled along, and the lightning shivered the mountain, and blasted the forest, the voice of peace and love broke forth upon the ear of the prophet,

and God proclaimed himself at hand; and in the hour of privation, while Israel wandered in pain from the land of bondage, the patriarch smote the rock, and produced a gushing fountain in the wilderness. Egypt, India, Arabia, have their wonderful rocks, their wonderful passes, and their deep hewn caves, where tradition still sits babbling of the past, and the religion of antiquity still finds votaries to solemnise its fearful rights; while, in our own land, this sea-girt isle, this white-cliffed Albion, the rocky heights are full of meaning to the lover of the picturesque, and the student of our country's geology.

Erratic Blocks are sprinkled over nearly every country in Europe, and in many parts of America are the chief features of the scenery for many miles. These boulders belong to the diluvian period, and sometimes have their own origin in the rocks near to the spots where they are found, and sometimes have been transported to their present sites from localities many miles distant. The mode in which such enormous blocks of stone could be borne along, has caused considerable difference of opinion amongst geologists, but it is pretty well agreed that glaciers have been the chief instruments in such a work; though great and rapidly moving floods may, in many instances, have accomplished it. At Gloucester, Massachusetts, there is an extensive plain covered for miles with huge stones, some of them weighing many tons each, which appear as if scattered by sportive Titans, who had flung them at each other, in an exhibition of muscular energy, and had then left them to astonish wondering mortals.

The beds of gravel so frequent in this country along the eastern coast from the Thames to the Tweed, are instances of the same age of great floods by which these erratic blocks were produced; and in these gravel districts, blocks of stone are very frequent, not merely in low situations, where we could imagine them to roll during a watery convulsion, but frequently poised on high lands, and even on the summits of hills, in such a manner as to prove that a glacier. or immense mass of ice, must have borne them, and left them, as it melted, poised in these delicate