REPORT OF THE SECRETARY. 107 



The discoverers of the art of iron manufacture, by W. Belck. 



The Kabyles of north Africa, by A. Lissauer. 



Chinese architecture and its relation to Chinese culture, by Ernst Boerschmann. 



The Lolos of Kientchang, western China, by A. F. Legendre. 



The physiology of sleep, by R. Legendre. 



Profitable and fruitless lines of endeavor in public health work, by Edwin O. 



Jordan. 

 Factory sanitation and efficiency, by C.-E. A. Winslow. 

 The physiological influence of ozone, by Leonard Hill and Martin Flack. 

 Traveling at high speeds on the surface of the earth and above it, by H. S. 



Hele-Shaw. 

 Robert Koch, 1S43-1910, by C. J. M. 

 Sir Joseph Dalton Hooker, 1817-1911, by Lieut. Col. D. Prain. 



SPECIAL PUBLICATIONS. 



The following special publications were issued in octavo form, dur- 

 ing the year : 



2013. Opinions rendered by the International Commission on Zoological Nomen- 

 clature. Opinions 30-37. Published July, 1911. Pages 69-88. 



2060. Opinions rendered by the International Commission on Zoological Nomen- 

 clature. Opinions 38-51. Published February, 1912. Pages 89-117. 



2052. Classified list of Smithsonian Publications available for distribution, 

 January, 1912. Published January, 1912. Pages vi, 29. 



2084. Publications of the Smithsonian Institution issued between January 1, 

 and April 1, 1912. One page. 



A. single folder, containing map showing Smithsonian and National Museum 

 buildings, and information pertaining thereto. 



There were no special publications in press at the close of the year. 



PUBLICATIONS OF THE UNITED STATES NATIONAL MUSEUM. 



The publications of the National Museum are: (a) The annual 

 report to Congress; (b) the proceedings of the United States Na- 

 tional Museum, and (c) the Bulletin of the United States National 

 Museum, which includes the contributions from the United States 

 National Herbarium. The editorship of these publications is vested 

 in Dr. Marcus Benjamin. 



The publications issued by the National Museum during the year 

 comprised the annual report for 1911; papers 1848, 1853, 1856 to 

 1879 of volume 41, Proceedings; papers 1880 to 1906 of volume 42, 

 Proceedings; three bulletins and five parts of Contributions from 

 the National Herbarium. 



The bulletins were as follows : 



No. 50, Part 5. Birds of North and Middle America, by Robert Ridgway. 

 No. 77. The early Paleozoic Bryozoa of the Baltic Provinces, by Ray S. Bassler. 

 No. 78. Catalogue of a selection of art objects from the Freer Collection ex- 

 hibited in the new building of the National Museum. . 



