National Geographic : 1933 Nov
566 THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by George R. King MACHINES COMB HEMP PREPARATORY TO ROPEMAKING AT AUBURN In the process it is necessary first to lay the fibers parallel. Then they must be twisted into threads, which in turn are twisted into strands. Several strands make a cord, several cords a rope, several ropes a hawser, and several hawsers a cable. Photograph by Clifton Adams WELLSVILLE REFINES EASTERN OILS Kansas, Oklahoma, Texas, and California oil fields outclass the Pennsylvania-New York district in production volume, but the first American area holds its own for quality, putting out several of the famous brands of motor lubricants.