EEPORT OF NATIONAL MUSEUM, 1913. 87 



from these trips. A study of the foreign and indigenous cottons, 

 begun by him before his appomtment to the Museum, resulted in 

 the publication during the year of three papers, dealing, respectively, 

 with the cottons of the Hopi Indians in Arizona and the Indians 

 of Rubelzul in eastern Guatemala, and with a new genus of Hawaiian 

 trees which had formerly been considered as congeneric with the 

 cottons. A systematic investigation of the cottons of Africa and 

 the Indian Ocean region has been commenced with the object of 

 determining the number of species and varieties occurring in those 

 areas and the proper identification of the types of staples coming 

 on the market. An annotated glossary of textile fabrics, which it 

 is hoped can be illustrated by actual specimens, has also been started, 

 and descriptions of new fabrics appearing on the market and men- 

 tioned in the trade papers are being recorded. 



DISTRIBUTION AND EXCHANGE OF SPECIMENS. 



The distribution of dupHcate material to schools and colleges for 

 teaching purposes comprised 48 regular sets, of which 2 were of 

 rocks, 26 of ores and minerals and 20 of fossil invertebrates, and the 

 same number of sets specially prepared, consisting mainly of marine 

 invertebrates, msects, fishes, rocks, ores, minerals, and fossils, 

 besides about 1,500 pounds of material suitable for blowpipe and 

 assay analysis. The total number of specimens used for this pur- 

 pose was about 7,300. Over 21,000 duplicates were also disposed of 

 in exchange transactions, about 84 per cent of this number being 

 plants. Two hundred and six lots of specimens were sent to special- 

 ists, both at home and abroad, for study and classification, mainly 

 on behalf of the Museum, but also to some extent in the interest of 

 research work for other institutions. They comprised 6,437 ani- 

 mals, 4,542 plants, and 2,048 rocks, minerals and fossils, a total of 

 13,027 specimens, besides 742 packages of unassorted marine inverte- 

 brates. 



The establishments abroad with which exchange relations were had 

 during the year were as follows: The British Museum of Natural 

 History, London, the Koyal Botanic Gardens, Kew, the University 

 Botanic Garden, Cambridge, and Alexandra Park, Manchester, 

 England; the Museum d'Histoire Naturelle, and the Herbarium of 

 Prince Roland Bonaparte, Paris, France; the Konigl. Botanischer 

 Garten und Konigl. Botanisches Museum, Dahlem, Steglitz bei Ber- 

 lin, the Botanischer Garten, Bremen, and the Museum ftir Volk- 

 erkunde, Leipzig, Germany; the CoUege of Mines, Leoben, Styria, 

 and the K. K. Naturliistorisches Hofmuseum, Vienna, Austria; the 

 Hungarian National Museum, Botanical Section, Budapest, Hmigary; 

 the Museum d'Histoire Naturelle, Fribourg, Switzerland; the Rijfe- 



