516 JOURNAL OF THE WASHIGNTON ACADEMY OF SCIENCES VOL. 11, NO. 21 



ranged, the first of which is being given by B. T. Wherry, of the Bureau of 

 Chemistry, on Advanced crystallography. 



The following Washington scientists have been appointed members of 

 the technical staff of the American delegation to the Conference on the 

 Ivimitation of Armament: Dr. L- W. Austin, radio specialist of the Navy 

 Department; Dr. J. H. Dellinger, chief of radio investigations at the 

 Bureau of Standards; Gen. Amos E- Fries, chief of the Chemical Warfare 

 Service of the Army; Gen. George O. Squier, chief of the Signal Corps of 

 the Army; Dr. S. W. Stratton, Director of the Bureau of Standards. 



Mr. Care S. Cragoe, who has been on a year's leave of absence and en- 

 gaged in graduate study at Johns Hopkins LFniversity, has returned to the 

 Bureau of Standards. 



Mr. T. Ikegami, chief geologist of the Nippon Oil Company, visited the 

 scientific institutions of Washington in November. 



Dr. Sylvanus G. MorlEy, research associate of the Carnegie Institution 

 of Washington, delivered a public lecture at the auditorium of the Insti- 

 tution on the evening of November 15 on The chronology of the ancient Maya. 



Miss Eunice Rockwood Oberly, since 1908 librarian of the Bureau of 

 Plant Industry, U. S. Department of Agriculture, died suddenly at her 

 home in Washington on November 5, 1921. 



Dr. John Augustine Zahm, of Holy Cross College, Brookland, D. C, 

 died at Munich, Bavaria, on November 11, 1921, in his seventy-first year. 

 Dr. Zahm was born at New Lexington, Ohio, June 14, 1851. He became 

 a member of the Order of the Holy Cross in 1871, and was in charge of the 

 scientific department of Notre Dame University, Indiana, from 1874 to 

 1895. He accompanied the late ex-President Theodore Roosevelt on 

 his Brazilian expedition. He was the author of a number of books and 

 papers on evolution and on the geography and history of South America. 



Correction: The Journal was in error in stating in a news item, on page 

 448, that Dr. Merwin Porter SnELL, who died on September 23, 1921, was 

 at one time connected with the Smithsonian Institution. He was an employee 

 of the Bureau of Fisheries from 1882 to 1890. 



ERRATA 



.VOL. 11, 1921 



P. 45 Footnote 4 read L. H. Adams, E. D. 



Williamson and J. Johnston, 

 Jour. Am. Chem. Soc. 41: 

 12-42. 1919. 



P. 46 Last item in column 4, 



table 1 should read -0.02 



P. 48 In Equation (5), for + read X 



P. 151 7th hne up from 



bottom — For x read Xe 



P. 153 Equation (12) for /» read fo 



P. 301, line 12 . . . For discoid read disciform 



P. 378 553rd meeting, for 



March 21 read March 1 



