warman.] RATING RIXON. 183 
Rhode Island ; borings, deep, in ... ! WS 61, p 43 
building stone from, statistics of. . .MR 1900, p 662 et seq; MR 1901, p 644 et seq 
geologic and paleontologic investigations in Ann 23, p 43 
granite production of MR 1900, pp 662, 
663, 664, 665, 668; MR 1901, pp 644, 645, 651, 652, 653, 654 
limestone production of MR 1900, 
pp 662, 685, 686, 687; MR 1901, pp 644, 645, 667, 668, 669, 670 
mineral springs of MR 1900, pp 901 , 902; MR 1901 , pp 962, 964 
topographic work in, cooperation of State in Ann 22, i, pp 18-19, 29 
Rhodolite, occurrence of , MR 1901 , p 744 
Rhyolite of Alaska, Ketchikan district PP 1, p 50 
of Idaho, Snake River Plains Bull 11)9, pp 42-45 
of Minnesota, Mesabi district (porphyritic) Mon xlui, pp 68-69, 79-80 
of Oregon, Blue Mountains Ann 22, n, p 590 
of Washington, Monte Cristo Ann 22, n, p 798 
Rhyolitic and granitic intrusives of Alaska, Seward Peninsula, northwestern 
portion PP 2, pp 29-30 
Rice irrigation systems in Texas WS 71, pp 82-124 
Richardson (G. B.), Collier (A. J.), and Brooks (A. H.), reconnaissance of 
the Cape Nome and adjacent gold fields of Seward Penin- 
sula, Alaska, in 1900 N and N, pp 1-180 
Richelieu River, Quebec, flow of, measurement of WS 65, pp 38, 40-41 
Richmond coal area, Virginia Ann 22, in, pp 32-42 
Rico Mountains, Colorado, ore deposits of Ann 22, n, pp 229-397 
Ridgway (J. L. ), work in charge of Ann 22, i, pp 178-179; Ann 23, pp 174-175 
Riebeckite, action of ammonium chloride on Bull 207, pp 45-46 
analysis of, from Colorado, Pikes Peak Bull 207, pp 45-46 
Ries (H. ), clays of the United States east of the Mississippi River PP 11 
flint and feldspar, statistics of MR 1901, pp 935-939 
Rio Grande, flow of, measurement of Ann 22, 
iv, pp 347-357; WS 50, pp 346-358, 364-366; WS 66, pp 
65-76, 80-82; WS 74, pp 103-109; WS 75, pp 153-163 
seepage on, measurements of WS 50, p 306 
topography of basin of Ann 12, n, pp 240-243 
Rio Grande division, Colorado, irrigation system of WS 74, pp 101-110 
Ripley formation of Alabama Bull 43, pp 71-83, 116, 132-133 
River stations, for measuring flow, in 1900 and 1901, maps showing locations 
of Ann 22, i v, pp 26, 27 ; WS 75, pp 12, 13 
in various States, rating tables for WS 52, 
pp 511-523; WS 65, pp 318-324; WS 66, pp 170-178 
operations at, in 1900 WS 47-52 
in 1901 WS 65, WS 66 
River terraces in Iowa, northeastern Ann 11, i, pp 425-432 
River water near New York City, quality of WS 76, pp 67-86 
turbidity, color, alkalinity, and hardness of, determination of WS 76, 
pp 73-76 
Rivers, flow of, under ice, measurement of WS 76, pp 48-67 
in United States, drainage areas of WS 52, pp 524-548 
near New York City, flow of, observations on WS 76 
stream measurement, methods of WS 56 
velocity of, methods of measuring WS 76, pp 14-20 
(See, also, Stream.) 
Rixon (T. F. ) and Dodwell (A.), forest conditions in Olympic Forest Re- 
serve PP 7 
