EEPOET OF THE SECEETABY. 



101 



Literature of-. 



1901 



1902 



1903 



1904 



1905 



1906 



1907 



1908 



1909 



1910 



1911 



Total 

 for year 



Year ending 



June 30— 



1902 



6,990 



6,150 



3,044 



1,619 



301 



384 



408 



133 



72 



3 























6,990 



1903 



8,330 



9,424 



2,780 



622 



511 



523 



235 



173 



26 





















14,480 



1904 



8,745 



11,143 



3,538 



862 



366 



373 



248 



28 



4 



















21, 213 



1905 



8,640 

 12, 139 



5,272 

 956 

 309 

 465 

 218 

 243 

















24,182 



1906 



9,001 

 9,022 

 5,629 

 1,656 

 1,163 

 129 

 386 















25, 601 



1907 



12,578 

 7,217 

 4,410 

 1,502 

 374 

 562 













28,629 



1908 



13,429 

 8,509 

 3,160 

 423 

 1,480 











28,528 

 34,409 



1909 



18,784 

 6,305 

 1,301 

 1,949 









1910 



11,994 

 8,836 

 3,372 







25,082 



1911 



1912 



14,682 

 5,231 



13,974 



26,020 

 27,201 











Total... 



19, 104 



22,624 



25,307 



28,242 



26,986 



26,643 



27,001 



28,339 24,202 



19,913 



13,974 



262,335 



During this time the London central bureau had received from all 

 of the 32 bureaus cooperating in the production of the International 

 Catalogue a total of 2,059,036 cards, and as 262,335 of these repre- 

 sented the cards received from the United States, it will be seen that 

 about 13 per cent of the work has been done by the regional bureau 

 for the United States. All of the first eight annual issues of the 

 catalogue, consisting of 17 volumes each, have been published, together 

 with 15 volumes of the ninth annual issue and 4 volumes of the tenth 

 annual issue, making a total of 155 volumes of the regular catalogue. 



Following an established policy to consolidate the catalogue when- 

 ever possible with similar enterprises, an agreement has been made 

 with the International Seismological Association whereby the yearly 

 International Catalogue volume on geology will be enlarged and the 

 section " Internal dynamics," containing an index to seismology, be 

 published not only as a regular part of the International Catalogue, 

 but also separately for the use of the International Seismological 

 Association. 



It is a matter of regret that this bureau is not yet able to afford the 

 expense of issuing cards, in advance of the regular published vol- 

 umes, for the immediate use of persons desiring prompt notice of 

 papers appearing on any of the subjects embraced within the scope of 

 the work. Plans having this object in view have been under con- 

 sideration for some time, but as yet the necessary funds are not 

 available for the purpose. It is not intended to issue cards in place 

 of annual volumes, but to distribute classified index cards as soon as 

 a paper is published, for the immediate information of those interested 

 in the advance of science. 



Very respectfully, 3 r ours, 



Leonard C. Guxnell, 



Assistant in Charge. 



Dr. Charles D. Walcott, 



Secretary of the Smithsonian Institution. 



