124 REPORT OF XATIOXAL MUSEUM, 1920. 



courts of law. Six years were spent in levisinji; the last Pharmaco- 

 poeia, and the current edition of this book, the tenth, represents the 

 labors of a Kevision Committee of fifty-one elected by the Conven- 

 tion of 1910, and composed of doctors, pliarmacists, and chemists. 



The written and printed ret'ords of this ^reat work Avere deposited 

 in the National Museum ]»y the United States Pharmacopoeial Con- 

 vention. Incoi'porated. on May 11, lOliC, and consists of the following 

 documents : 



"Letters" of the Kxcrutive Conninitee of K.^ision 1010-1920, 3417 pages; 



■•Circulars"' carrying the eorrespondeiice :in<l voles of General Committee of 

 Kevision 1910-1 1(20, 2000 pages; 



Published abstracts of proposed U. S. I*. Changes; 



The original manusfript of the U. S. 1'. 9th Kevision ; 



CJalley proof for correction by Committee ]Menil>ers ; 



Assembled comments on galley proof ; 



Page proof for correction by Committee Members ; 



Assembled comments on page proof; 



Foundry proof ; 



Plate proof; 



Also the manuscri^it for ihe Pjianish edit ion of the 9th Revision of the 

 Pharmacopoeia. 



These records, taken with the copies of practically every edition of 

 the Pharmacopoeia already owned by the National Museum, cover 

 the history of a remarkable book extending over a hundred years. 

 A part of tlie written record of this history has been added to the col- 

 lections by tlie receipt of a copy of the " Life of Dr. Lyman Spalding, 

 the Originator of the Ignited States Pharmacopoeia," which was con- 

 tributed by the author, his son, Dr. James A. Spalding, of Portland, 

 Maine. 



There has l)een added to the exhibition collections of the section of 

 wood technolog\% a most noteworthy series of illustrations prepared 

 for the National Museum b}^ the U. S. Forest Service. This consists 

 of 4S colored bromide enlargements and 125 colored transparencies. 

 The bromide enlargements are divided into four sets showing '' Tj'pes 

 of Lumbering,-' '" Steps in Lumbering,"' '' Forest Industries," and 

 '' Forest Service Work," and each of these contains 12 scenes with 

 appropriate sub-headings. These pictures are to be set in a ma- 

 hoganized frame and placed as a frieze around tlie I-beam stipport- 

 ing the gallery over the Wood Court. The transparencies represent 

 typical forest scenes in different parts of the country, particularly 

 in tlie region of the National Forests, and are to be placed on top of 

 the north Mall case in the AVood Court. It is planned to install 

 lighting fixtures behind these transparencies, so that what has been 

 the darkest })art of the space allotted to the wood collections will 

 develop into one of the most attractive. 



