REPORT OF THE SECRETARY. 29 



volumes, the twelfth annual issue of geology, and the thirteenth 

 annual issue of chemistry, anatomy, and botany. This brings the 

 total number of volumes published since the inception of the Cata- 

 logue in 1901, up to 216 volumes containing about three million 

 references to current scientific periodicals. The organization as a 

 whole is holding together very well under extremely adverse condi- 

 tions, and when peace is declared it will be necessary only to resume, 

 rather than reorganize the work. 



It is becoming more and more difficult to draw the line between pure 

 science and applied science, and the present limitation of the Catalogue 

 to pure science should be broadened to include at least some of the 

 applied sciences which are advancing with such great strides. Al- 

 though this would increase the size and cost of the Catalogue, yet 

 its enhanced value would by increasing the demand for it and con- 

 sequently its sale, offset any additional cost. 



Respectfully submitted. 



Charljss D. Walcott, Secretary. 

 25027—17 3 



