2^4 



NEW YORK STATE MUSEUM 



Chemung county, brick manufac- 

 turers, 250*-51. 



Chemung shale, 99*. 



Chili, clay deposits, 228^ 



China clays, 138^ 



Chittenango, drain tile works, 222". 



Cities using brick pavements, ISl*^. 



Clamps, 171'. 



Clarkson, brick yards, 204^ 



Clay, general remarks, 137-4P; color 

 of, 138^ ; composition, 137' ; deposi- 

 tion, 137-^-382; "fat" and "lean," 138'; 

 fusibility, 139"; impurities, 1388; 

 plastici y, 138'*; qualities essential to 

 good brick, 138*; refractoriness, 140^- 

 41'; three kinds, 140^; weight, 140*. 



Clay deposits, character, 100^; geologic 

 distribution, 100^; table, 240-41. 



Clay industry, statistics, 98''; growth, 

 982-99»; conduct of business, 174^-75^ 



Clearwater, J. J., assistance acknowl- 

 edged, 98'. 



Clinton county, brick manufacturers, 

 246M7. 



Coal dust, effect in brick, 164^-65', 166^. 



Coats bros., brick yard, 196^-97-. 



Cobbles, 1088, hqi, 1125, IIS^. 



Coe, S. E., brick yard, 198^ 



Coeymans' Landing, brick yards, 190^- 

 91*; clay deposits. Ill-, 190^; terrace, 

 lice. 



Cohoes, brick yards, 1929-93^ 



Cold Spring, brick yards, 182^; delta 

 deposits, 114'; stratification, 12^^-22,-. 



Cold Spring Harbor, clay deposits, 

 122', 315*. 



Color, of brick, 157'; reasons for differ- 

 ences, 1 ;9*-40"; 

 of clay ; change through oxida- 

 tion, 102% 1043; table, 240-41; of 

 pure clay, 138^. 



Columbia county, brick manufacturers, 

 244'-45. 



Concretions, 111M2', 1193, i28i, 12&8. 



Conewango, clay deposits, 103*. 



Conlon, J., assistance acknowledged, 

 98'. 



Conlon, P. H., assistance acknowl- 

 edged, i)&'. 



Cooney & Farrell, brick yard, 186^. 



Corning brick co., 154=, 235*. 



Cornwall-on-Hudson, brick yard, 182*; 



clay deposits 182*; delta deposits, 114^, 



115^; stratification, 104=; terrace, 109'. 



Cortland county, brick manufacturers, 



250«-51. 

 Corwin & CuUough, brick yards, 190^- 



9P. 

 Cost, of brick; dry clay process, 175^; 

 soft mud process, 115'; stiff mud 

 process, 175^; 

 of burning brick, 166=; of dredging 

 clay, 1773; ^f drying brick, 170^; of 

 fuel, 175"; of production .of brick, 

 174*-'; 5'; of working clay, 145M6'. 

 Covered yards, 1628-63^; view, 161«. 

 Coxsackie, brick yard, 189=; clay 



deposits, 189=; terrace, 116'. 

 Coykendall, S. D., brickyard, 184^-852. 

 Cracks in brick, cause, 166'. 

 Crandall & Marble, brick yards, 212^. 

 Crescent, brick yard, 193*. 

 Cretaceous clay deposits, 1003 12I', 122=, 

 128=, 13(8. 1314^ 1338^ 1352^ 13^4^ 2256_ 



Crossman bros., brick yard, 215^. 

 Croton, clay stratification, 104=; delta, 



1118, 1152_ 



Croton brick co., 177". 



Croton Landing; brick, test of permea- 

 bility, 1513; brick yards, 176^-78*; 

 clay deposits, IIP; terraces, 116^; 

 use of steam shovel, 146^ 



Croton Point, brick yards, 1778; clay 

 deposits, 1118, ] 779-78*; concretions, 

 1198; dredging at, 14'7^. 



Croton river, delta deposits, 114'; ter- 

 races, 1168, 



Crugers, clay deposits, 112', 178=-79^ 



Crumpled layers, 1228, 129*, ISP. 



Crushing strength, of brick, 149=, 181*, 

 200^ of roofing-tile, 238=. 



Crushing tests, 153-54'. 



Cupola brick, manufacture, 225'. 



Cuylerville, depth of clay, 101'. 



Daub, use of, 1648. 



Davenport, W., brick yard, 197=. 



Davidson, D., brick yard, 194'. 



Deerfield, brick yards, 199'. 



Delaney & Lavender, brick yard, 



1908-912. 

 Delta deposits, 104", 1083, 109=, 1103, 



114*-15*. 117=. 



