944 



NEW YOKK STATE MUSEUM 



Windom, Hamilton shale, 833', 834^ 

 Wire-cut machines, 662*; illus. facing 



p. 662-63. 

 Wire rope, haulage with, 633^ 686^ 

 Wolcott furnace, shale, 828*. 

 Wood & Keenan, brick yard, 743^. 

 Working clay, methods of, 631'-35'. 

 Wrape & Peck, brick yard, 710»-11^ 

 Wyandance, clay deposits, 741°; illus. 



facing p. 741. 

 Wyoming, clay deposits, 574*, 627". 



Yards, see Brick yards. 

 Yates Center, clay deposits, o74^ 

 Yellow clay, characteristics, 577''. 

 Yellow gravel, 607^ 607°, 610^ 

 Yellow ware, 793\ 8 14^-1 51. 

 Yonkers, delta deposits, 588'. 

 York, depth of clay, 574". 

 Yttrium oxid, 511'. 



Zettlitz, Bohemia, kaolin, 544^; kaolin 

 mines. 500^ 



3S, 5 



