December 19, 19 J 3] 



SCIENCE 



897 



TABLE V 



Errors in Locating the Cardinal Points of the 



Compass in the Case of Subjects Having 



No Imaginary Maps 



C. C. Trowbridge 



Columbia University 



THE CONVOCATION WEEK MEETING OF 

 SCIENTIFIC SOCIETIES 

 The American Association for the Advance- 

 ment of Science and the national scientific 



societies named below will meet at Atlanta, 

 Ga., during convocation week, beginning on 

 December 29, 1913. 



American Association for the Advancement of 

 Science. — President, Professor Edmund B. Wilson 

 Columbia University; retiring president. Professor 

 Edward C. Pickering, Harvard College Observa 

 tory; permanent secretary, Dr. L. O. Howard 

 Smithsonian Institution, Washington, D. C. ; gen 

 eral secretary. Professor Harry W. Springsteen 

 Western Eeserve University, Cleveland, Ohio ; secre 

 tary of the council, Professor William A. Wors 

 ham, Jr., State College of Agriculture, Athens, Ga, 



Section A — Mathematics and Astronomy. — VicB' 

 president. Dr. Frank Sehlesinger, Allegheny Ob 

 servatory; secretary. Professor Forest E. Moulton 

 University of Chicago, Chicago, 111. 



Section B — Physics. — Vice-president, Professor 

 Alfred D. Cole, Ohio State University; secretary, 

 Dr. W. J. Humphreys, Mount Weather, Va. 



Section C — Chemistry. — Vice-president, Dr. Carl 

 L. Alsberg, Bureau of Chemistry; secretary. Dr. 

 John Johnston, Geophysical Laboratory, Washing- 

 ton, D. C. 



Section D — Mechanical Science and Engineering. 

 — Vice-president, Dr. 0. P. Hood, U. S. Bureau of 

 Mines; secretary, Professor Arthur H. Blanchard, 

 Columbia University, New York City. 



Section E — Geology and Geography. — Vice-presi- 

 dent, J. S. Diller, U. S. Geological Survey; secre- 

 tary, Professor George F. Kay, University of Iowa. 



Section F — Zoology. — ^Vice-president, Dr. Alfred 

 G. Mayer, Carnegie Institution of Washington; 

 secretary. Professor Herbert V. Neal, Tufts Col- 

 lege, Mass. 



Section G — Botany. — Vice-president, Professor 

 Henry C. Cowles, University of Chicago; secretary, 

 Professor W. J. V. Osterhout, Harvard University, 

 Cambridge, Mass. 



Section H — Anthropology and Psychology. — 

 Vice-president, Professor Walter B. Pillsbury, 

 University of Michigan ; acting secretary. Dr. E. K. 

 Strong, Jr., Columbia University, New York City. 



Section I — Social and Economic Science. — Vice- 

 president, Judson G. Wall, Tax Commissioner, New 

 York City; secretary, Seymour C. Loomis, 69 

 Church St., New Haven, Conn. 



Section E — Physiology and Experimental Medi- 

 cine. — Vice-president, Professor Theodore Hough, 



