928 



NEW YORK STATE MUSEUM 



Arch brick, 645*, 677^ 



Archaean rocks, 587'. 



Arches, arrangement, 674°; number of 

 bricks in, 674°; number of courses, 

 674°; labor required to tend, 677°. 



Arkansas, clay deposits, 612*. 



Arkison Bros., brick yard, 703'. 



Arlington, brick yard, 701^-2^; clay 

 deposits, 701'-2^ 



Armstrong, W., brick yard, 714*. 



Arrochar, clay deposits, 607'. 



Arthur's Kill, 609\ 



Athens, terraces, 590°, 591*; brick 

 yards, 704*; clay deposits, 704*. 



Auburn, brick yard, 718°. 



Auger machine, 663*, 745°; illus. fac- 

 ing p. 773. 



Aurora, depth of clay, 574". 



Eabcock, J., brick yard, 706'^. 



Baeby, J., brick yard, 708°. 



Baker, I. 0., crushing tests, 751°-52°. 



Baldwin, Mrs, brick yard, 718'. 



Baldwinsville, brick yards, 717'-18'; 

 clay deposits, 717''-i8^ 



Ball clay, 614', 793^ 



Ball mills, 657°-58*. 



Ballou, M., brick yard, 715°. 



Baltimore, clays near, 511". 



Barium, 683°. 



Barnard college, illus. facing p. 763. 



Barrytown, clay deposits, 702^. 



Bartlett, W. E., brick yard, 703°. 



Basin-shaped deposits, 573*, 584'. 



Bat, 805'. 



Bath brick. 852«-53^ 



Beauport, terraces, 594". 



Bedford, feldspar, 842°; quarries, 843'. 



Belgian white earthenware, composi- 

 tion, 796\ 



Belgium, glass-pot clays, 787°. 



Belleek ware, 798^ 



Benches, working in, 631"-32'. 



Bender, M. H., brick yard, 706°. 



Benkert, A., stoneware works, 823°. 



Bennett, C, brick yard, 718'. 



Bennett, Rowan & Scott, brick yards, 

 694°. 



Bernck, Charles & Sons, brick yard, 

 723°. 



Berthier, P., experiments, 517'-18'. 



Beryllium oxid in clays. 511°. 



Bibliography of clay literature, 908- 

 12. 



Bigflats, brick yard, 726°-27^ 



Binghamton, brick yards, 731°. 



Biscbof, C. experiments on action of 

 silica, 526°; on testing plasticity, 

 543°: formula for relative fusibility 

 of clays, 552'; method of determin- 

 ing temperature, 558'. 



Biscuit burn, 814". 



Biscuit ware, 796°, 816°; illus. facing 

 p. 806. 



Bishop, I. P., test of Hamilton shale, 

 833'-34°. 



Blasting, 632°. 



Blistering of ferruginous clays, 517°. 



Blue clay, characteristics, 577°. 



Bohemia, glass-pot clays, 787°. 



Bolton, William, brick yard, 724°. 



Bone china, 794°. 



Bonner & Cole, brick yard, 693'. 



Bonner brick co., 693°. 



Borck, F., brick yard, 718°. 



Bostwick, W. H., brick yard, 728°. 



Boulders, 577°, 582', 584', 584°, 586% 

 588', 592*, 595'. 



Boyd diy clay presses, 665°; illus. fac- 

 ing p. 665. 



Bi'azilian clays, 511°. 



Breesport, brick yards, 727°-28'; clay 

 deposits, 576°, 727°-28'. 



Brennan, J., brick yard, 694'. 



Brick, time of burning, 676°; time of 

 cooling, 676'; cost of production, 

 685°-86''; cracks in, 651S 676°; crush- 

 ing strength, 643°, 647°-50*, 695'; 

 drying, 668°-72°; efflorescence on, 

 679°-85*; ground, used to prevent 

 shrinkage, 548^; methods of manu- 

 facturing, 653°-56^; repressing, 668*, 

 745*; sorting, 679°; weight, 528°. 8ee 

 also Building brick; Common brick; 

 Cost; Enameled brick; Fire brick; 

 Glazed brick; Hollow brick; Orna- 

 mental brick ; Paving brick ; Pressed 

 brick ; Testing ; Vitrified brick. 



Brick clays, alkalis in, 515°, 569^; 

 alumina in, 569^; analyses, 638'-39', 

 882-99; burning, 639°-42°, 672*-79*; 

 illus. facing p. 674^79; characteris- 

 tics, 636^-39°; color, 639°-42'; fer- 

 ric oxid in, 520'. 520*, 569^ lime in, 

 523', 569S 636', 640', 641*; magnesia 

 in, 524°, 569S 640'; silica in, 525°; 

 tensile strength, 545° : 



in Alabama, 611°-12^; Arkansas, 

 612°; Colorado, 613*; Delaware, 614°; 

 Florida, 614°, 615»; Georgia, 615°; 

 ■ Kentucky, 617*; Louisiana, 618'; 

 Michigan, 620*; Mississippi, 620°; 

 Missouri, 622°; Nebraska, 623'; 

 North Carolina, 624°; Ohio, 625*; 

 Pennsylvania, 625°; South Dakota, 

 626'; 'Texas. 626°; Virginia, 627°; 

 Wyoming, 627°. 



Brick yards, three kinds, 669°-70'; 

 Ownership, 685°; detailed account, 

 680°-743*. 



Bricklmilrler, extracts from, 680'. 



Brickmaking industry, 643^-757°. 



Brigham Bros., brick yard, 699°, 700^ 



Brighton, clay deposits, 575'. 



