The Science record; a compendium of scientific progress and discovery . ith the exception of the plateshaving a uniform thickness of 9 inches. At a distanceof about 2 feet inside the walls of the ship is a water-tight bulkhead formed by 7-inch plating, dividing thebattery into two parts, so that in case water should enterone of the exterior compartments, the vessel would stillfloat. The trial-trip of the Novogorod was recently made at Ni-kolaief, in presence of the Grand Duke Constantine ofRussia. Although the ship was hardly completed, or en-tirely ready for sea, it is stated that, with a ste
The Science record; a compendium of scientific progress and discovery . ith the exception of the plateshaving a uniform thickness of 9 inches. At a distanceof about 2 feet inside the walls of the ship is a water-tight bulkhead formed by 7-inch plating, dividing thebattery into two parts, so that in case water should enterone of the exterior compartments, the vessel would stillfloat. The trial-trip of the Novogorod was recently made at Ni-kolaief, in presence of the Grand Duke Constantine ofRussia. Although the ship was hardly completed, or en-tirely ready for sea, it is stated that, with a steam pressureof pounds, and a vacuum of inches, with 62revolutions, a speed of 6 knots per hour was ship proved herself an excellent sea-boat, obeying herhelm readily, and turning almost squarely on her heel 286 SCIENCE RECORD. when the engines on either side were stopped or theirspeed slackened. With the port engines going ahead, andthe starboard engines backing, it is stated that she wentabout the first time in two minutes, and on a second trial. in one minute and nineteen seconds, with hardly changingher place. On reversing both machines, the ship stoppedin a few seconds and turned in the opposite direction, alsowithout altering her position. STEAM CANAL-BOATS ON THE ERIE CANAL. The trial of steam canal-boats on the Erie canal, incompetition for the $100,000 prize, came off between Syra-cuse and Utica, N. Y., on October 15th and 16th, 1873. The members of the State Commission present at thetrial were Van R. Richmond, George Geddes, John , E. S. Prosser, Daniel Crouse, W. S. Nelson, andGeorge W. Chapman ; also D. M. Greene, engineer incharge, and H. A. Petrie, Secretary of the Commission. The boats were required to be able to carry 200 tons ofcargo, besides their motive power, and to make an averageof three miles an hour. But none of the boats made thistime, and none can claim the reward. The detentions of the various boats along the way werevery grea
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