Show allver which traverse the in the ocean the longest way round Is the shortest way home for instance if a united states transport were to leave san francisco for china the most logical course would seem to be straight west across the north pacific to tho land of the boxers but in reality the ehla would be to the southwest along abo equator and past the philippines to abo asian coast tills course would bo several hundred billea longer yet it would take the vessel to her destination much quicker than the straight course in tuo one case she would be going with the current in the other sho would be colne against the current the ocean Is not a simple pathless expanse over which short cuts may be made but n system of highways crossways aud even blind alleyways which have been surveyed and laid ont by nature magazine |