REPORT OF THE PRESIDENT, 1915. 27 



During the past summer the underground intake pipe from 



the street water-main sprung a leak under the floor of the base- 



„ . ment of the Administration Building. Such 



Repairs to . • i i i i -i t 



Administration Underground pipes are required by the building 

 '"^' regulations of the District of Columbia to be 

 of lead, and although the material used at the time of the con- 

 struction of the building was of the highest quality, it appears 

 to be inadequate to meet the maximum pressures communicated 

 from the street mains. A similar break occurred in 1910, but its 

 location on that occasion was easily found and repair was made 

 without the necessity of removing any of the concrete floors. 

 In the case of the recent break, however, it appeared essential 

 to remove a considerable portion of these floors in order to find 

 and to repair the break. Since immediate action was necessary 

 it was determined to substitute for the underground intake an 

 overhead system of galvanized-iron pipes. This was quickly 

 installed at a cost of S324. During the past summer also the 

 masonry joints of the entire building have been carefully exam- 

 ined and repointed where necessary. Some additional fenders 

 have been supplied on the walls of the east side of the building 

 in order to prevent damage from heavily loaded freight wagons. 

 The expense of these repairs and alterations has required no 

 special appropriation aside from the usual item for repairs con- 

 tained in the budget for 1915. 



PUBLICATIONS. 

 The pubUcation of 35 volumes has been authorized by the 

 Executive Committee during the year, at an aggregate estimated 

 T, u,. . A u cost of $73,148.66. The following Hst gives the 



Publications Autho- ^ ' '^ , -. , 



rized and Issued titlcs and uamcs of the authors of the publications 

 unng e ear. -gg^^^ during the year," it includes 23 volumes, 

 with an aggregate of 4,686 octavo pages and 1,466 quarto pages; 

 45 additional volumes are now in press. 



List of publications issued during the year. 



Year Book, No. 13, 1914. Octavo, xvi+399 pages, 7 plates. 



Index Medicus, Second Series, vol. 12, 1914. Octavo, 1,526 pages. 



No. 85. Hasse, Adelaide R. Index of Economic Material in the Documents of the States of the 



United States. Prepared for and under the direction of the Department of Economics 



and Sociology of the Carnegie Institution of Washington. Separate volume for each 



State. New Jersey (1789-1904). Quarto, 705 pages. 

 No. 159. Howard, L. O., Harrison G. Dyar, and Frederick Knab. The Mosquitoes of North and 



Central America and the West Indies. In 4 volumes. Vol. 3. Description of 



Species. Octavo, vi+523 pages. 

 No. 175. Bauer, L. A., and J. A. Fleming. Land Magnetic Observations, 1911-1913, and Reports 



on Special Researches. (Researches of the Department of Terrestrial Magnetism.) 



Vol. 2. Quarto, v+278 pages, 13 plates, 9 figures. 



