National Geographic : 1939 Dec
824 THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by N. Nylander SLEIGH BELLS JINGLE IN TALLINN'S BROAD MARKET SQUARE Outdoor venders' booths have retreated before the snowstorm, a common occurrence in December and January. The latter month is the coldest, with mean temperature of 20 degrees Fahrenheit. Photograph by fkarikas "OIL WELLS" IN ESTONIA ARE UNDERGROUND MINES Several shafts at Kohtla drive deep into the oil shale. Countries with easy access to petroleum and coal fields have not exploited shale because manufacturing costs are too high. Estonia, lack ing such resources, and forced to import fuel at high prices, found it cheaper to produce crude oil, gasoline, and other products by distilling shale. Now she has met all domestic needs.