32 Carnegie; institution of Washington. 



meteorology and hydrology, by Prof. V. Bjerknes and Mr. J. W. Sandstrom, 

 of the University of Christiania; and the report of the California State 

 Earthquake Commission. 



PUBLICATIONS AND THEIR DISTRIBUTION. 



Since the most important index of the productivity of a research institu- 

 tion is found in the quantity and quality of its publications, this field of 

 activity requires special consideration. On the score of 



Publications Issued quantity, at any rate, it is already plain that our depart- 

 During the Year. ^ •' •' . ' , . ,, , . , • • 



ments are destined to be highly productive, and it is 



equally clear that minor grants to competent investigators will prove simi- 

 larly fruitful. 



That the work of publication under the auspices of the Institution is grow- 

 ing apace will be seen by the following list of works issued during the year 

 and by the supplementary table showing the number of works issued and the 

 cost of publications for each year since the foundation of the Institution. 

 The list shows that 38 volumes have been issued with an aggregate of 3,428 

 quarto pages and 6,284 octavo pages, respectively. Aloreover, there are 

 now in press 22, volumes. 



Year Book, No. 5, 1906. Octavo, viii + 266 pages, 13 plates. 



Index Medicus, Second Series, vol. 4, 1906. Octavo, 1,595 pages. 



Reprint of Nos. 2-12, inclusive, Index Medicus, Second Series, vol. i, 1903. Octavo, 



1,252 pages. 

 No. 5. General Catalogue of Double Stars within 121° of the North Pole. By S. W. 

 Burnham. Quarto, 2 vols. Vol. i, The Catalogue, lv + 256 (256a-256r) 

 pages. Vol. 2, Notes to the Catalogue, viii -j- 257-1086 pages. 

 No. 9. The Collected Mathematical Works of George William Hill. Quarto, 4 vols. 



Vol. 4, VI + 460 pages. 

 No. 32. Chimasroid Fishes and their Development. By Bashford Dean. Quarto, 194 



pages, II plates, 144 text figures. 

 No. Z3- Researches in Stellar Photometry. By J. A. Parkhurst. Quarto, 192 pages, 13 



plates, 39 text figures. 

 No. 44. Researches in Experimental Phonetics. The Study of Speech Curves. By 



E. W. Scripture. Quarto, 204 pages, 13 plates, 138 text figures. 

 No. 47. Rhythmical Pulsation in Scyphomedusse. By A. G. Mayer. Octavo, 62 pages, 



2 plates, 36 text figures. 

 No. 48. An Investigation of Evolution in Chrysomelid Beetles of the Genus Leptino- 

 tarsa. By W. L. Tower. (Paper No. 4, Station for Experimental Evolu- 

 tion.) Octavo, X + 320 pages, 30 plates, 31 text figures. 

 No. 54. Research in China. By Bailey Willis and others. Vol. i in two parts. 



Part I. Descriptive Topography and Geologj'. By Bailey Willis, Eliot 

 Blackwelder, and R. H. Sargent. Quarto, xiv + 353 + xvi pages, 51 

 plates, 65 text figures. 

 Part II. Petrography and Zoolog\'. By Eliot Blackwelder. Syllabary for 

 the Transcription of Chinese Sounds. By Friedrich Hirth. Quarto, 

 pages VI -t- 355-528 + xvii-xxiv, plates ui-Lxiii (including 6 plates of 

 birds colored to life). 

 Atlas. By Bailey Willis, Eliot Blackwelder, and R. H. Sargent. Folio, 

 42 maps and 21 other illustrations. 



