188 Field Museum of Natural History — Reports, Vol, X 



to descriptions of new Peruvian plants, principally those obtained 

 by the various Marshall Field Expeditions to Peru. 



A guide book to the collection of North American trees exhibited 

 in Charles F. Millspaugh Hall (Hall 26), was issued during the year. 

 This publication was prepared by Professor Samuel J. Record, 

 the Museum's Research Associate in Wood Technology, and Pro- 

 fessor of Forest Products at Yale University School of Forestry. 

 The text covers the same ground as the descriptive labels written 

 by Professor Record for the woods displayed in this hall. Each 

 of the eighty-four species included is described concisely as to 

 appearance of the tree, botanical characters, geographic distribution, 

 and characteristics and uses of its wood. Apart from its reference 

 to the Museum's collection, this booklet, entitled North American 

 Trees, with its numerous illustrations, constitutes a useful and 

 instructive guide serviceable to all interested in our native trees 

 and their woods. 



Members of the Department staff prepared for Tropical Woods 

 many abstracts and reviews of current literature relating to tropical 

 trees and shrubs, and contributed twelve signed articles and twenty 

 other items to Field Museum News. Twenty-four newspaper articles 

 resulted from data supplied by the Department. 



ACCESSIONS — BOTANY 



During 1934 the Department of Botany received 226 accessions, 

 consisting of 34,714 specimens. Thus, while the number of accessions 

 is slightly smaller, the number of specimens is substantially larger 

 than in 1933. The accessions comprised specimens for the Her- 

 barium, for the exhibits, and for the wood and economic collections. 

 Of the total number 6,655 were gifts, 8,132 were received through 

 exchange, 14,858 were derived from Museum expeditions, 1,676 

 were purchased, and the rest obtained from miscellaneous sources. 



Of the Department's total receipts of 34,714 specimens, those 

 for the Herbarium amounted to 33,756 items — plant specimens, 

 photographic prints, and negatives. The Herbarium has received 

 an unusually large amount of particularly valuable material through 

 gifts and exchanges. Among these may be selected for special 

 mention 140 specimens of tropical American Rubiaceae, received 

 in exchange from the Conservatory and Botanic Garden of Geneva, 

 through the courtesy of the director. Dr. B. P. Georges Hochreutiner. 

 These consisted chiefly of duplicate types or otherwise authentic 

 material of historical importance. Another valuable sending, like- 

 wise in exchange, consisted of 270 specimens from the Botanic 



