Cloche hat of black silk velvet. The rigid crown has a flattened top, and sides formed of gathers of the velvet forming horizontal ridges. The brim is a soft, gathered and padded "ruffle" of the same velvet. The hat is lined in a black satin. Sewn inside crown is retailer's label: "Neiman-Marcus Co. / Dallas New York".

From Prefactory Statement: "In this bulletin are presented the results obtained in the first two phases of the work outlined above. The bulletin is in two parts. The first part describes the methods of mining and milling used, suggests a standard method of sampling finished graphite, and describes a rapid and convenient method of analysis developed at the Pittsburgh station of the Bureau of Mines, to which has been assigned the analytical and microscopic work. The second part describes experiments on the concentration and milling of graphite, which were made at the Salt Lake City, Utah, station."