of Mull and Tyree; and the workmen were left on the rock desponding and idle, and destitute of many of the comforts with which a more roomy and sheltered dwelling, in the neighbourhood of friends, is generally connected. Daily risks were run in landing on the rock in a heavy surf, in blasting the splintery gneiss, or by the falling of heavy bodies from the tower on a narrow space below, to which so many persons were necessarily confined. Yet had we not any loss of either life or limb; and although our labours were prolonged from dawn to night, and our provisions were chiefly salt, the health of the people, with the exception of a few slight cases of dysentery, was generally good throughout the six successive summers of our sojourn on the rock. The close of the work was welcomed with thankfulness by all engaged in it; and our remarkable preservation was viewed, even by many of the most thoughtless, as, in a peculiar manner, the gracious work of Him by whom the very hairs of our heads are all numbered!"

Steam Navigation.

I. JAMES SYMINGTON.

Of the many triumphs of enterprise achieved by the agency of that tremendous power which James Watt tamed and put in harness for his race, perhaps the greatest and most momentous is that which has reversed the old proverb, that "time and tide wait for no man," given ten-fold meaning to the truth that seas but join the regions they divide," and enabled our ships to dash across the trackless deep in spite of opposing elements,

"Against wind, against tide,

Steadying with upright keel,"

in a fraction of the time, and with a fraction of the cost and peril of the old mode of naval locomotion. How amply realized has been James Bell's prediction more than half a century ago, "I will venture to affirm that history does not afford an instance of such rapid improvement in commerce and civilization, as that which will be effected by steam vessels!"

Towards the close of the last century, a number of ingenious minds were in travail with the scheme of steam navigation. The Marquis de Jouffroy in France, and Fitch and Rumsey in America, were successful in experiments of its feasibility; but it is