Page:Popular Science Monthly Volume 90.djvu/614

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598

��Popular Science Monthly

���Harvard's varsity crew practicing on their indoor river course in the rowing tank at the Newell Boat House, rowing hard against a current produced by a gasoline motor

��Training Harvard's Crew on an Artificial River with a Real Current

TT 7HEN it is impossible for the members V V of Harvard's crew to practice on the river, the men are taught the art of rowing in the tank at the Newell Boat House.

To make the indoor practice as similar as possible to actual rowing conditions on a river, a stiff current is set up in the tank by propellers operated by a gasoline motor. Indeed, rowing in the tank of moving water is harder than it is on a river with a strong running tide, because the boat is stationary and the water moves in the same direction as the stroke is taken. The boat is thirtv- eight feet long and has sliding seats.

��Converting an Automobile Into a Farm Workhorse

AN attachment recently placed upon the Jl\ market by a manufacturer in Tacoma, Washington, enables the farmer who owns a small automobile to convert it into a tractor and back again into a pleasure car. To convert the automobile into a tractor the body and mudguards of the machine are removed, a small pinion gear is applied to the axles in place of the rear wheels, heavy steel tractor wheels are substituted for the automobile wheels, and by means of clamps a steel rim six inches wide is placed on the front wheels after the tires have been removed, as illustrated below.

���By removing the body, mud guards, rear wheels and front tires of the pleasure car and substituting tractor wheels and a small pinion gear in their place a farm tractor is created

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