100 REPORT OF NATIONAL MUSEUM, 1925 



" one-hour frog " method of standardizing this much-used medicine. 

 A set of 14 colored posters showing the right and wrong way to 

 diagnose and treat cancer was received as a gift from the American 

 Society for the Control of Cancer, New York City. The Association 

 for Improving the Conditions of the Poor, New York, N. Y., con- 

 tributed 12 colored charts dealing with important phases of child 

 hygiene. Dr. E. R. Booth, Cincinnati, Ohio, presented through Dr. 

 Norman C. Glovep, Washington, D. C, a copy of his recent book, 

 " History of Osteopathy and Twentieth Century Medical Practice," 

 for addition to the history of osteopathy collection. 



Two specimens of medicinal arsenicals, arsphenamine and neo- 

 arsphenamine, were donated by the Powers-Weightman-Rosengarten 

 Co., Philadelphia, Pa. Johnson & Johnson (Inc.), New Brunswick, 

 N. J., presented a cotton roll toothbrush, 20 cotton rolls for use in 

 the same, and specimens of dental floss; S. E. Howard's Son & Co., 

 New York City, contributed 12 toothbrushes of various sizes and 

 st3des; and the Pro-phy-lac-tic Brush Co., Florence, Mass., donated 

 six toothbrushes. This material was used in arranging the oral 

 hygiene exhibit. 



Graphic arts. — In the Division of Graphic Arts the exhibit illus- 

 trative of the history of writing was increased by three Babylonian 

 tablets inscribed with cuneiform characters. The one of most inter- 

 est is the work of a school boy learning to write. It is of sun-dried 

 clay, nearly flat on one side and rounded on the other, the writing 

 being on the flat side only. Tablets of this sort were not intended 

 to be permanently preserved and were never burned, and were there- 

 fore in a fragmentary condition when discovered. These tablets are 

 not dated, but from other objects found in the same ruins the 

 Museum specimen is placed at about 2000 B. C. It was found at 

 Warka, which is in the neighborhood of the Biblical city of Erech, 

 where Abraham was living at about that time. The «ther two smaller 

 tablets are of burned clay, very skillfully inscribed and are simple 

 business accounts of about 2300 B. C. 



The wood-engraving exhibit was augmented by new material, 

 the result of changed economic conditions. Previous to the World 

 War boxwood was imported in sufficient quantities to supply the 

 demand of wood engravers, but since then a large part of the sup- 

 ply has been cut off. In order to make the much-reduced impor- 

 tation meet requirements, manufacturers have resorted to veneer- 

 ing. Boxwood of good quality is veneered on a hard maple base 

 or on a poor grade of boxwood, the quality of the veneer determin- 

 ing the price. Samples of this new product were furnished by 

 John G. Bjorkman, the wood engraver, and the Sandberg Manu- 

 facturing Co., both of Chicago. Mr. Bjorkman, in response 



