But at College, how different!--_There_, a man begins to feel that it is a matter of total indifference to him whether he sit on a hard wooden bench, or a soft stuffed chair; _there_, the short coat is discarded, and he stalks about with the air of a three-tailed bashaw, as his own two, generally, at first, are prolonged a little below the knee; _there_, his penny tart, which he bought on Saturdays at the door of the school, is exchanged for a dessert from Golding's; his beer, which he occasionally imbibed at the little pot-house, two miles beyond the school bounds, is exchanged for his wine from Butler's.--Books from Talboy's, the most enterprising of bibliopoles, supply the place of the tattered Dictionary he brought to the University, which, after being stolen when new, and passing, by the same process, through twenty hands, is at last, when fluttering in its last leaves, restolen by the original proprietor, who fancies he has made a very profitable "nibble." The trot he used to enjoy by stealth on the butcher's broken-kneed pony, is succeeded now by a gallop on a steed of Quartermain's; and he is delighted to find that horse and owner strive which shall be the softest-mouthed and gentlest charger. The dandy mare, we suppose, has many long years ago made fat the great-grandfathers of the present race of dogs; and old Scroggins, we imagine, has been trod to pieces in boots and shoes, the very memory of which departed long, long before they were paid for. Of old Scroggins--as Dr. Johnson says--and of his virtues, let us indulge ourself in the recollection. Though not formed in the finest mould, or endowed with the extremity of swiftness, his pace was sure and steady--equal to Hannibal in endurance of fatigue; and, like that celebrated commander, his aspect was rendered peculiarly fierce and striking by a blemish in his eye; not ignorant of the way to Woodstock was the wall-eyed veteran; not unacquainted with the covers at Ditchley; not unaccustomed to the walls at Hethrop: but Dandy and Scroggins have padded the hoof from this terrestrial and unstable world--peace to their manes!--_Blackwood's Magazine._ * * * * * SPIRIT OF DISCOVERY. * * * * * _Friction of Screws and Screw-presses._ An examination of the friction in screws having their threads of various forms, has led M. Poncelet to this very important conclusion, namely, that the friction in screws with square threads is to that of equal screws with triangular threads, as 2.90 to 4.78, proving a very important advantage of the former over the latter, relative to the loss of power incurred in both by friction.--_Brande's Journal._ _Fulminating Powder._