few minutes after the run was finished, the experts began their inspection.

The motor was first removed and examined. The rear cylinder showed normal maximum compression, the front a slight leakage, a fall of about five pounds being noted. The condition of the rear piston and cylinder was perfect. The forward cylinder was somewhat scored, and the piston rings were worn, the last due apparently to an insufficient supply of oil at some past time in the cylinder. The inlet valves were in firstclass working order, although the stems were slightly worn. The stems of the exhaust valves, themselves pitted, showed considerable wear. Crank pins and connecting rod bearings were all that could be desired. The main bearings were in good condition, as were the wrist pins and bear

hours were spent in filling tanks, changing drivers, putting on new tires, etc. On each gallon of oil consumed fourteen and a half miles were made. Including the lubricating oil used the fuel cost was $24.75.

The roads the machine traveled over

ings. Nothing was wrong with valve. cams or cam rollers, though the roller pins, as evidenced by slight loss of motion, were somewhat worn.

In the gasoline tank and feed pipe to the carbureter a considerable deposit of gray sediment and some lint were found. Had the tank and pipe been cleaned before the non-stop run was made the motor in all likelihood would have continued to operate indefinitely.

The total cost of putting the machine in first-class condition, including cost of labor, was estimated by a repair man at about twenty-five dollars.

During the run slightly over fifteen

Part of

were by no means boulevards. the time they were regular marshes. A cold wind blowing speedily turned them into frozen ridges and ruts. Often the wheels broke through the ice, badly shredding the tires. shredding the tires. Still, in spite of this, the first tire trouble did not occur till the car had covered a distance of 1,027 miles, when a rear tire exploded.

The trial showed the truly remarkable endurance of the automobile of today, an endurance that is doubly remarkable when the careful adjustment and delicate parts are considered in contrast with the indifferent character of the roads in this country.

REVIEWS of BOOKS

Cyclopedia of Architecture, Carpentry and Building.

About forty of the leading authorities of the United States have contributed to the ten-volume set of truly extraordinary books under the above title, which are just off the presses of the American School of Correspondence, Chicago. Four thousand pages with approximately two hundred full-page and over three thousand lesser illustrations, elevations, photographs and drawings, the set contains, with working drawings, detailed estimates of various kinds of structures, homes, bungalows, summer cottages and artistic types of public buildings. Comprehensive and complete, it is a work of practical reference, invaluable to the student and professional alike, in the building world, containing much that has never before been brought together in useful form, with abundance of new material, the thought and experience of the men who are doing things-big things in this age of amazing constructive prog

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