. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. Fi(—DiiiKram showing the shapes of composite orographic blocks in the southern part of theIompi-raug Basin, a. South Britain-Pine Hill-Southbury block; 6, South Britain block; c. South-bury block; d. East Hill-Pine Hill block; e, smaller Soutlxbury block. The larger figures on thesides of each block are the measurements of each as read from the map in sixteenths of an inch(one-sixteenth of a mile). The smaller figures on the oppos

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. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. Fi(—DiiiKram showing the shapes of composite orographic blocks in the southern part of theIompi-raug Basin, a. South Britain-Pine Hill-Southbury block; 6, South Britain block; c. South-bury block; d. East Hill-Pine Hill block; e, smaller Soutlxbury block. The larger figures on thesides of each block are the measurements of each as read from the map in sixteenths of an inch(one-sixteenth of a mile). The smaller figures on the opposite sides give the approximate f-Mmpleproportional lengths of sides. The diagonals of the blocks correspond closely in direction,as they do also in position, with observed faults having the directions indicated. The study of the* composite blocks of the southern distiict hasbrought out strongly the fact that composite 1)locks approximate to adetiniteness of shaj^e rather than of size. The unit blocks of OrenaugHill bounded by N. i 5^ W. and N. ± 54° E. faults have the ratio oftheir sides approximately 1: 2. The composite block of gneiss (E,

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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1900, bookyear1901