98 REPORT OF NATIONAL. MUSEUM, 1925 



Specimens showing additional industrial uses of "pyralin," a 

 pyroxylin plastic, were contributed by E. I. du Pont de Nemours & 

 Co. (Inc.), of Wilmington, Del., for inclusion in exhibits contributed 

 by this firm in previous years. 



In wood technology there was added to the collections a large 

 Douglas fir timber, for flanking the west side of the entrance to 

 the Wood Court directly opposite a similar timber of Southern 

 yellow pine. Douglas fir produces more lumber annually than any 

 other single species of tree in the United States, and this magnificent 

 specimen, representing the forests of the Pacific Northwest, deserves 

 its prominent place. It was cut in Snohomish County, Wash., and was 

 delivered to the Museum free of all expense by the West Coast Lum- 

 bermen's Association, Seattle, Wash. The Grand Kapids Wood 

 Finishing Co., Grand Rapids, Mich., presented the Museum with 

 a series of veneered panels of the most prominent woods used in 

 the furniture industry to show the most popular finishes used to-day. 

 Gift of a complete series of specimens, showing stages in the manu- 

 facture of lead pencils and demonstrating a most important use of 

 red cedar, was made by the Wallace Pencil Co., St. Louis, Mo. 



The greater part of the accessions credited to the division of 

 medicine was for additions to the Hall of Health and dealt with 

 the subject of public health. 



An interesting and instructive exhibit was donated by the Ameri- 

 can Social Hygiene Association (Inc.), New York City, the work 

 of J. H. M. Dudley, a well-known model maker of Elizabeth, N. J., 

 The exhibit consists of three panels, upon the first of which is ar- 

 ranged a series of specimens illustrating the way life begins ; the 

 center panel deals with eugenics ; and the third panel pictures social 

 hygiene measures. 



A model to illustrate in allegory the never-ceasing struggle of 

 health against disease was specially constructed "for the division. 

 A section of a village is shown with a wall obstructing the entrance 

 of diseases represented as beasts, from a dark and gloomy forest. 

 This model emphasizes the fact that disease prevention is every- 

 body's work, and that each individual owes it to himself and the 

 community to render active assistance in this struggle to increase 

 the life span and make the world a better place in which to live by 

 complying strictly with all health laws and regulations. 



Dr. John Uri Lloyd, Cincinnati, Ohio, who has cooperated with 

 the Museum for several years in the development of exhibits illus- 

 trating the history and principles of the eclectic branch of American 

 medical practice, donated a collection of 170 specimens of historically 

 important, old type laboratory apparatus, many pieces of which 

 were made and used by Dr. John King, a pioneer eclectic practi- 

 tioner and pharmacologist, one of the authors of the American Dis- 



