REPORT or THE SEGEETAEY, 33 



From the Department of Commerce, several hundred specimens 

 of industrial raw materials not heretofore represented in the col- 

 lections, which had been sent to the department by American con- 

 sular offices and trade commissioners for the purpose of encourag- 

 ing foreign commerce. There were added by gift beautiful speci- 

 mens of silks, fur fabrics, and drapery textiles contributed by 

 American manufacturers to show the progress of textile industries 

 in this country. 



To the collections arranged to show the importance of wood and 

 the industries based upon the use of that raw material, there were 

 added two series of specimens illustrating the manufacture and use 

 of sulphite wood pulp for writing papers, one showing in detail 

 the steps in the process, and the other the exact quantities of each 

 ingredient entering into 100 pounds of finished paper; also exhibits 

 showing the importance and uses of American walnut, many ex- 

 amples of articles turned from wood, and specimens of laminated 

 wood wheels for motor vehicles. 



The collections in the division of medicine were enlarged by ex- 

 tensive series of specimens showing the manufacture of surgical 

 dressings, pills, plasters, surgical ligatures, and clinical thermome- 

 ters; specimens of essential oils and related aromatic substances; 

 important alkaloids and alkaloidal salts used in medicine ; and a 

 series of charts showing the treatment of rabies, typhoid fever, and 

 whooping cough. 



Grcq)Mc arts.—T\\e specimens acquired in the division, while less 

 than half in number, are still fully as important, artistically and 

 technically, as the 1920-21 sjDecimens. The most important indi- 

 vidual gift was that of the sixteenth century methods of making- 

 type, in which all the specimens were made by or prepared -by Mr. 

 Dard Hunter, Chillicothe, Ohio. Mr. Hunter himself made the 

 punches, struck the matrices, and cast the type. This is one of a 

 series consisting of printer's ink, paper, and type making, Avhich, 

 with the promised modern methods of type making, will be about 

 complete. Several gifts combined have greatly improved both the 

 technical and historical series of collotype. The Campbell Art Co., 

 of Elizabeth, N. J., gave a valuable and instructive technical exhibit 

 of color printing, and Ijeautiful examples of the process were also 

 furnished by Foster Bros., of Boston, the Medici Society of America 

 (Inc.), and by Rudolf Lesch. of Xew York City. These are ex- 

 amples of the finest collotype Avork being produced to-day. and 

 make an excellent showing of this process of photomechanical re- 

 production. A new process for reprinting books has been developed 

 by the Polygraphic Co., of Berne. Switzerland, who donated a com- 

 plete exhibit. In this so-called ]Manul process the negative is ob- 



