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Mexico. 
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92 Verzeichnis der angelargten Druckschriften. 
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Transactions of the Academy of Science, Vol. X, 9—11; XI. I—11; 
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Boletin del Instituto geolögico. Num. 15 (1901).} 
Bulletin of the Minnesota Academy of Natural Sciences. Vol. III, 
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Twenty-first Annual Report 1899—1900, part I, II, ILL, IV, 
V, V (maps), VI, VI (continued), VII. — 5) Bulletin: 
177--194. — c) Monographs: Vol. XXXIX and vol. XL. — 
d) Mineral resources of the United States. Calendar-year 
1900. — e) The Geology and mineral resources of a portion 
of the Copper River District, Alaska. (1901.) — f) Reconnais- 
