Miscellaneous Intelligence. 483 



A second department which has been affected by the war 

 conditions is the Mt. Wilson Solar Observatory, the director of 

 which, Dr. Hale, has been called upon to devote his energies to 

 the Department of Science and Research of the Council of 

 National Defence. Fortunately the assistant director has been 

 able to fill his place and the record of the year 's work is notable, 

 both in amount and scientific importance. 



Other departments are able to record a large amount of work 

 accomplished : as that of Botanical Research, Dr. D. T. Mac- 

 Dougal, director ; and that of Experimental Evolution, Dr. C. B. 

 Davenport, director. 



Attention is to be called also to the Department of Terrestrial 

 Magnetism which has now issued the third volume of its 

 researches of the magnetic survey of the earth, carried on 

 through the past ten years to near the end of 1916. It is inter- 

 esting to add that the aggregate length of all the cruises of the 

 Galilee and of its successor the Carnegie, to March 2, 1917, is 

 more than 239,000 nautical miles or about eleven times the 

 circumference of the earth. The extent and accuracy of the 

 observations made has resulted in giving a remarkable amount 

 of information not only in regard to the magnetic elements, but 

 also their annual changes over the ocean. A map shows both 

 the extensive cruises of the vessels mentioned and the land 

 stations at which observations have been taken during the period 

 of 1905-1917. 



An important change in the Institution is the discontinuance 

 of the Department of Economics and Sociology which, by 

 mutual assent, was decided upon by the trustees at their meeting 

 of December, 1916. 



Recent publications of the Carnegie Institution are the fol- 

 lowing (see earlier, 44, 408, 1917) : 



No. 225. Contributions to Embryology. Vol. V, No. 14. 

 The development of the cerebro-spinal spaces in pig and in man ; 

 by Lewis H. Weed. Quarto. Pp. 116. 17 plates. 



No. 249 II. The interf erometry of reversed and non-reversed 

 spectra. Part II ; by Carl Barus. Pp. 146 ; 97 figs. 



No. 252. Papers from the Department of Marine Biology of 

 the Carnegie Institution of Washington. Alfred G-. Mayer, 

 director. Volume XII. Eleven papers. Pp. v, 258; with 

 plates and text figures. 



No. 254. European Treaties bearing on the history of the 

 United States and its Dependencies to 1648 ; edited by Frances 

 Gardiner Davenport. Pp. vi, 387. 



No. 255. Club types of Nuclear Polynesia; by William 

 Churchill. Pp. 173 ; 3 figs., 17 pis. 



3. Carnegie Foundation for the Advancement of Teaching, 

 Twelfth Annual Report of the President, Henry S. Pritchett, 

 and Treasurer, Robert A. Franks. Pp. vi, 154. New York City 

 (576 Fifth Avenue) 1917. — The Carnegie Foundation has been 



