The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . 3 shows that 95 per cent of the winds with strength over 10 miles perhour blew from a southerly direction. Yet during this season thecoast is generally clearest of fog and cloud. The explanation ap-pears to lie in the exceedingly delicate nature of the adjustmentsbetween the various rain-making forces. The relative humidity of the air from the sea is al- , . , , . ., . June, July Dec, Jan. ways high, but on the im-mediate coast is slightly lessso in summer than in win-ter. Thus in Mollendo therelat
The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . 3 shows that 95 per cent of the winds with strength over 10 miles perhour blew from a southerly direction. Yet during this season thecoast is generally clearest of fog and cloud. The explanation ap-pears to lie in the exceedingly delicate nature of the adjustmentsbetween the various rain-making forces. The relative humidity of the air from the sea is al- , . , , . ., . June, July Dec, Jan. ways high, but on the im-mediate coast is slightly lessso in summer than in win-ter. Thus in Mollendo therelative humidity during thewinter of 1895 was 81 percent; during the summer 78per cent. Moreover, thetemperature of the CoastRange is considerably higherin summer than in winter,and there is a tendency toreevaporation of any mois-ture that may be blownagainst it. The immediateshore, indeed, may still becloudy as is the case at Cal-lao, which actually has itscloudiest season in the sum-mer, but the hills are com-paratively clear. In conse-quence the sea-air passesover into the desert, wherethe rela
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Keywords: ., bookauthorbo, bookcentury1900, bookdecade1910, booksubjectgeology
