wakman.] HICKS HYDROGRAPHERS. Ill 
Hornblende-biotite-nordmarkite, analysis of, from Vermont, Ascutney 
Mountain Bull 209, p 59 
Hornblende-paisanite, analyses of, from Vermont, Ascutney and Little 
Ascutney mountains Bull 209, p 75 
basic segregation in, from Vermont, Ascutney Mountain Bull 20 ( .», p 66 
Hornblende-pyroxene-andesite, analysis of, from Yellowstone Park, Sepulchre 
Mountain Ann 22, n, p 525 
Hornblendic schists of Minnesota, Mesabi district Mon xliii, pp 66-68 
Hornfels, thin section of, from Vermont, Ascutney Mountain Bull 209, p .",2 
Horton (R. E. ), Grand River, Michigan, hydrographic data concerning WS 49, 
pp 239-249 
methods employed in gaging New York streams in 1900 WS 47, pp 37-41 
Hot Creek Range, Nevada, geology of Bull 208, pp 84-87 
Housatonic River, flow of, measurement of WS 47, 
pp 35-36; W T S 65, pp 87-90; WS 75, p 24; WS 76, p 104 
quality of water of AVS 76, pp 84-85 ; WS 79, pp 98-107 
Hovey (E. O. ), ores of economic importance MR 1901, pp 967-973 
Howard limestone of Kansas, synonymy, character, and fauna of Bull 211, p 50 
Hiibnerite in Colorado, Silverton quadrangle Bull 182, pp 86-87, 143 
Hudson group of Illinois GF 81, p 2 
Hudson River, New York, drainage areas and pollution in basin of WS 72, p 36 
flow of, measurement of Ann 22, 
iv, pp 84, 107-111; WS 47, pp 39, 75-79; WS 65, pp 44, 48-53 
ice obtained from WS 72, pp 61-64 
rainfall, run-off, and evaporation in basin of WS 80, 
pp 63, 64, 70, 71, 72, 77, 78, 96, 99 
water from, analyses of, at Poughkeepsie WS 72, p 35 
Hudson River and tributaries, hydrography of WS 65, pp 42-87 
hydrography of, with respect to pollution WS 72, pp 34-72 
Hudson River group in Erie and Ohio basins Mon xli, p 54 
Hudson schist of New York City district GF 83, p 4 
Hudson shales, clays derived from PP 61 , p 50 
of Wisconsin PP 11, p 265 
Huerfano formation of Colorado GF 71 , pp 2, 3 
Humboldt Range, Nevada, geology of Bull 208, pp 59-61 
Humboldt River, Nevada, flow of, measurement of Ann 22, iv, pp 399-402; 
WS 51, pp 395-399; WS 66, pp 104-108; WS 75, pp 181-183 
Humboldt series of Nevada Bull 208, p 20 
Humidity, relative, of Costa Rica Ann 22, iv, pp 520-521 
of Nicaragua Ann 22, iv, pp 517-519, 522 
Hungary, pyrite production of MR 1901, pp 841, 842 
sulphur production of MR 1901, p. 837 
Huntington series of Oregon Ann 22, n, p. 579 
Hunton limestone of Indian Territory GF 79, p 3 
Huron River, Michigan, hydrography of basin of Ann 22, 
iv, pp 259-260; WS 49, p 251 
Huronian and Potsdam formations, unconformity between Ann 7, pp 409-412 
Huronian rocks of Great Lakes region Bull 8, pp 15, 16, 20 
of Minnesota, Mesabi district Mon xliii, pp 72-181 
Vermilion district Mon xlv, pp 275-396 
Hyatt ( A. ), Pseudoceratites of the Cretaceous Mon xliv 
Hydrocarbons, classification and features of Ann 22, 
i, pp 220-224; Bull 213, pp 296-300 
Hydrographers, resident, in the States, list of Ann 22, iv, p 53 
