70 INDEX TO PUBLICATIONS OF U. S. GEOL. SURVEY. £bull.215. 
Cement, Portland, industry in Arkansas Ann 22, in, pp 741-742 
industry in Michigan - Ann 22, in, pp 629-685 
kilns used in making, styles of Ann 22, in, pp 639-640 
materials, processes, tests, etc Ann 22, in, pp 727-731 
materials used in making, composition of WS 54, p 134 
in Michigan Ann 22, in, pp 641-677 
Michigan, analyses of Ann 22, in, p 680 
tensile strength of, tests of : . .Ann 22, in, pp 681-682 
notes concerning WS 54, pp 133-136 
statistics of MR 1900, pp 737-744; MR 1901, pp 721-725 
uses of Ann 22, in, p 640 
Cement, slag, analysis of, from Alabama, Ensley MR 1900, p 747 
analysis of, from Alabama, North Birmingham MR 1901, pp 727-728 
from various localities Bull 213, p 223 
in Alabama MR 1900, pp 747-748 
manufacture of Bull 213, pp 221-224 
Cement rock in Texas, Austin quadrangle GF 76, p 7 
Cemetery limestone of Montana Ann 22, n, p 437 
( (ix >zoic formations of Iowa, northeastern Ann 11, i, p 234 
Census Office, cooperation with Ann 22, i, pp 41-42 
Central America; hydrography of American isthmus Ann 22, iv, pp 507-630 
physiography, temperature, rainfall, and w ind movement of Ann 22, 
iv, pp 513-536 
Cerussite of Ozark region Ann 22, n, p 114 
Ceylon, graphite production of MR 1901, p 900 
Chabazite, action of ammonium chloride on Bull 207, pp 32-34 
analysis of, from Nova Scotia, Wassons Bluff Bull 207, p 32 
Chad r<»ii formation of Nebraska GF 88, p 2 
of South Dakota GF 85, p 4 
of Wyoming, eastern WS 70, pp 15-16 
Chagres River, Panama, hydrography of Ann 22, iv, pp 594-623 
Chalcedony, occurrence of MR 1901, p 755 
Chalk, analyses of, from Arkansas, southwestern Ann 22, in, pp 735-736 
analyses of, from Texas, various localities Ann 22, in, p 737 
of Arkansas, southwestern, with notes on its adaptability to the manufac- 
ture of hydraulic cements Ann 22, in, pp 687-742 
Chalk-marl, analyses of, from Arkansas, southwestern Ann 22, in, pp 735-736 
of Arkansas, southwestern Ann 22, in, pp 700-725 
Chalcopyrite, detection of, in pyrite or marcasite and in rocks, method 
of Bull 186, p 35 
Chamberlin (T. C. ), work in charge of Ann 22, i, p 59; Ann 23, p 28 
Champlain, Lake, flow of, measurement of WS 65, pp 38-42 
trap dikes in region of Ann 15, pp 99-100 
Chanute formation of Kansas, flora of Bull 21 1, pp 38, 110 
Chara, composition of stems of, after removal of organic matter . . .Ann 22, in, p 659 
Charleston quadrangle, West Virginia, geology of GF 72 
( Charleston sandstone of West Virginia GF 72, p 5; GF 77, p 4 
Chattahoochee River, Georgia, flow of, measurement of Ann 22, iv, pp 191- 
192; WS 48, pp 158-160; WS 65, pp 2(>7-271 ; WS 75, pp 78-80 
Chattahoochee River and tributaries, flow of, measurements of WS 49, 
p 208; WS 63, p 179 
Chattanooga shale of Georgia '. . .GF 78, p 3 
of Tennessee GF 75, p 4 
Chazy limestone of Kentucky Ann 8, n, pp 545, 546 
