884 



IS^EW YORK STATE MUSEUM 



Brick clays 



o 



10 



11 



12 

 13 

 14 

 15 



16 



17 



IS 

 19 



20 



21 

 22 

 23 

 24 



25 

 26 

 27 

 28 

 29 

 30 

 31 

 32 

 H3 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 

 43 

 44 

 45 

 46 

 47 

 4i 



State and. county 



Colorado: 



Pueblo 



District of Columbia 



Florida: 

 Escambia 



Georgia: 

 Bartow 



It 



it 



Floyd..!!!.'!!!!!!!! 



Richmond 



Illinois: 

 Lasalle 



Livingston 



Kane 



Peoria 



Lasalle. , .... 



Mercer 



Lasalle 



Indiana: 

 Marion 



Floyd 



Crawford 



Monroe 



Martin 



Jennings 



Warren 



Perry 



Jackson 



Union , 



Clark 



Vigo 



Wabash 



Fountain 



Daviess 



Greene 



Jasper 



Parke 



Dubois 



Martin 



Washington 



Madison 



Hamilton 



Lawrence 



Town 



Pueblo 



Washiugton. . 



Bluffsprings . 



Carters ville. 



McCamores cave. . . 



Cartersville 



Rome 



Augusta. 



La Salle... 

 Woodland. 



Cornell. 

 Aurora. 

 Peoria.. 

 Utica. . 

 Ottawa. 



Grifan.. 

 Lasalle. 



Streator 



Indianapolis 



New Albany 



Wyandotte cave 



Bloomington . 



Dover Hill. 

 Vernon. . .. 

 Covington . 



Cannelton .... 

 Hrowiistown . 

 Liberty. 

 Jefferson ville 

 Terre Haute . 



Wabash 



Veedersburg . 

 Washington . . 

 Worthington . 



Jasper 



Montezuma . . 



Haysville 



Lodi 



Cale 



Salem 



Anderson . . . . 

 Noblesville . . . 

 Mitchell 



Remarks 



Shale. 



Clay. 

 Slate. 



Plastic clay . 

 Alluvial clay. 

 Surface clay. 



Red clay . 



Clay 



No. 2 clay. 



No. 1 clay. 

 Red clay. . 



Buff clay. 



Brick 



Terra-cotta. 



Clay 



Red clay . . . 



Clay. 

 Clay! 



Clay 



SILICA 



Com- 

 bined 



Free 



61 

 62.14 



52.05 



58.63 



71.6 



69.33 

 69.18 

 67.8 



54.55 



63 



51.36 



68.23 



49.964 



72.1 



56.65 



45.79 



75.83 



64.53 

 63 



63. 3 



61.76 

 59 08 

 53.18 

 48.5 



66.14 



55.23 



70.73 



68.19 



34.35 



66.44 



f-6.83 



63.6 



73.81 



49.83 



71.833 



62.18 



69.6 



81 71 



63.25 



68.64 



.'i4.53 



70.33 



64.27 



45.23 



73.33 



63.3 



74.33 



68.14 



Alumina 



3.5 

 35.55 



18.87 



20.47 



11.5 



19.01 

 l.'i.43 

 13.82 



18.04 



18.1 

 13.8 



Ferric 

 oxid 



(r. 



2 49 



8.58 



5.59 



3.02 

 5.83 

 5.74 



a 3.87 



9.11 

 9.68 



13.64 

 16.1 

 26.45 

 22.44 



15.04 



23.. 52 

 18.1 



18.3 



18.33 

 31.3 

 19.37 

 19.5 



15.34 

 29.66 

 13.74 

 18.23 

 15.5 

 22.09 

 22.94 

 20.84 

 13.87 

 13.95 

 12.64 

 15.9 

 13.08 

 9.81 

 24.81 

 20.18 

 24.66 

 18.3 

 20.16 

 39.68 

 13.94 

 23.11 

 13.94 

 19.05 



19.48 



1.788 

 3.3 

 3.1 

 a tr. 



1.08 



1.92 

 9.1 



7.04 



.5 , 

 3. IS 

 12.3 



6.32 

 4.63 

 4.4 

 2.43 

 33.12 

 2.16 

 2.64 

 3.17 

 3.66 

 2.1 

 4.4 

 3.77 

 3 98 

 3.8 

 5.04 

 3.5 

 7.46 

 2.9 

 2.12 

 4.60 

 5.21 

 3.8 

 5.2 

 4.0» 



