STAFF OF INVESTIGATORS FOR YEAR 1923 



Laboratory for Plant Physiology: 



Daniel T. MacDougal, Director. 

 William A. Cannon. 

 J. M. McGee. 



Department of Embryology: 



George L. Streeter, Director. 

 Chester H. Heuser. 

 Margaret R. Lewis. 



Department of Genetics: 



Charles B. Davenport, Director. 

 A. F. Blakeslee, Assistant Director. 

 H. H. Laughlin, Assistant Director. 

 H. J. Banker. 

 A. M. Banta. 

 John Belling. 



Geophysical Laboratory: 



Arthur L. Day, Director. 



L. H. Adams. 



Eugene T. Allen. 



N. L. Bowen. 



C. N. Fenner. 



J. W. Greig. 



R. H. Lombard. 



H. E. Merwin. 



G. W. MOREY. 



Eugen Posnjak. 



Department of Historical Research: 



J. Franklin Jameson, Director. 

 Edmund C. Burnett. 

 Frances G. Davenport. 

 Mary F. Griffin 



Department of Marine Biology: 



Paul Bartsch (U. S. National Museum). 

 Henry E. Crampton (Columbia University). 

 C. B. Lipman (University of California). 

 William H. Longley (Goucher College). 

 Asa a. Schaeffer (Clark University). 



Department of Meridian Astrometry: 



Benjamin Boss, Directoi. 

 Sebastian Albrecht. 

 Sherwood B. Grant. 

 Heroy Jenkins. 



Mount Wilson Observatory: 



George E. Hale, Honorary Director. 



Walter S. Adams, Director. 



Alfred H. Joy, Secretary. 



F. H. Seares, Supt. Computing Division. 



A. S. King, Supt. Physical Laboratory. 



J. A. Anderson. 



Harold D. Babcock. 



Ferdinand Ellerman. 



Edwin P. Hubble. 



Forrest Shreve. 

 H. A. Spoehr. 

 Godfrey Sykes. 



W. H. Lewis. 



A. H. SCHULTZ. 



A. H. Estabrook. 

 M. Demerec. 

 J. A. Harris. 

 E. C. MacDowell. 

 C. W. Metz. 

 Oscar Riddle. 



H. S. Roberts. 



E. S. Shepherd. 



F. Hastings Smyth. 

 Robert B. Sosman. 

 H. S. Washington. 

 Walter P. White. 

 E. D. Williamson.* 

 Fred E. Wright. 

 R. W. G. Wyckoff. 

 E. G. ZiEs. 



Waldo G. Leland. 

 Charles O. Paullin. 

 Leo F. Stock. 



William A. Setchell (University of Cali- 

 fornia). 



D. H. Tennent (Bryn Mawr College). 



T. Wayland Vaughan (U. S. Geological 

 Survey). 



Harry Raymond. 

 Arthur J. Roy. 

 W. B. Varnum. 

 Ralph E. Wilson. 



Milton Humason. 

 Paul W. Merrill. 

 Seth B. Nicholson. 

 Francis G. Pease. 

 Edison Pettit. 

 R. F. Sanford. 



GUSTAF StROMBERG. 



Charles E. St. John. 

 A. van Maanen. 



* Deceased. 



VI 



