10 REPORT OF THE SECRETARY. 



importance in the literature of cbeniistry, tiie word "Select" being 

 only added as an indication that the work does not profess absolute 

 completeness. It represents the labors of a lifetime on the part of a 

 most industrious student of the bibliography of chemistry, and is a 

 work of reference of such value tbat is is believed it will be a necessity 

 to every chemical investigator. 



Volume xxxvii of the Collections is a very complete Index to the 

 genera and species of the Foraminifera, by Prof. C. Davies Sherborn,of 

 London. The technical character of this work has rendered prompt 

 publication impracticable. The first part of the volume, "A to non," 

 was issued during the year, and the second part is in progress. 



Volume XXXVIII of the Collections is also in progress and consists 

 of several short papers, including "Principles and method of classifi- 

 cation of varieties of tlie human species;" "Bibliography of Aceto- Acetic; 

 Ester ;" "Indexes to literatures of Cerium and Lanthanum,"' and " Index 

 to literature of Didymium." These indexes to chemical literature are 

 published in continuation of the series begun some years ago under the 

 recommendation of the American Association for the Advancement of 

 Science. 



A special octavo volume, now in press, consists of the Diary of a 

 Journey through Mongolia and Tibet, by Mr. W. W. Eockhill. This 

 expedition was carried on in part under the auspices of the Institu- 

 tion, and the diary is, in the main, a description of the cliaracteristic 

 geographical and ethnological features of those countries, so seldom 

 visited by Europeans. A large map, on a scale of 32 miles to the inch, 

 shows the route traversed by Mr. Rockhilj, and is in itself a valuable 

 contribution to our knowledge of the region. 



Following the usual custom, the several papers comprised in the 

 general appendix of the annual report have been issued separately 

 in pamphlet form ; about sixty of these pamphlets were issued dur- 

 ing this year, as enumerated in the editor's report. 



SmitJtsonian annual reports. — The delayed annual reports of the 

 Institution for the years 1891 and 18915 have been received and distrib- 

 uted, as also the annual reports of the United States National Museum 

 for those years. 



The Secretary's report for 1893 was issued in January in pamphlet 

 form. The manuscript of the general appendix to the report of the 

 Institution for 189;5 was sent to the printer on March 31, and the entire 

 volume was stereotyped and press work in i)rogress early in elune, 

 thus bringing the work np to date, and avoiding the tedious delays 

 of previous years. 



Reports of the Bureau of Ethnology. — Tlie ninth and the tenth annual 

 reports of the Bureau of Ethnology to the Secretary of the Institution 

 have both been received during the year. These volumes fully main- 

 tain the character established for the series, and are gradually bringing 



