Popular science monthly . Above: A sidecar hood and wind-shield made of transparent sjx^aking trum^K-t facilitates com-munication with the driver of the car At left: A sunken floor enablesworkmen to disconnect motor-trucks and fit or repair the springswhile standing upright. Heavysteel bridges support the trucks 7i)-i Truck Which Are Making Them More Versatile. At right: Unloading logs?--^ from a truck over a-^\\ wooden pier into Lake;-\ K Sammamish, Washington

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872