November 24, 1922] 



SCIENCE 



595 



S. I. Korilhauser, School of Medicine, Louis- 

 ville, Ken-tucky; in charge of the work for the 

 American Society of Zoologists. 



L. W. Sharp, College of Agriculture, Ithaca, 

 N. Y. ; in charge of the work for the Botanical 

 Society of America. 



COLLABORATOES 



C, E. Allen, Department of Botany, University 



of Wisconsin, Madison, Wisconsin. 

 E. Allen, TJrsinus College, Collegeville, Pa. 

 L. B. Arey, Northwestern University, Medical 



School, Chicago, 111. 



E. Artschwager, Bureau of Plant Industry, Wash- 

 ington, D. C. 



H. P. Bell, Dalhousie University, Halifax, N. S 



Fred Berry, Department of Health, Columbus, 

 Ohio. 



M. F. Boyd, University of Texas, Galveston 

 Texas. 



T. E. Buckman, Boston City Hospital, Boston, 

 Mass. 



Victor Burke, State College, Pullman, Washing- 

 ton. 



C. T. Burnett, 608 Majestic Building, Denver, 

 Colorado. 



Gary N. Calkins, Department of Zoology, Colum 

 bia University, New York City. 



F. W. Carpenter, Trinity College, Hartford, Conn 

 P. Castleman, Health Department, Boston, Mass, 

 J. W. Churchman, Cornell Medical School, New 



York City. 



E. E. Cleland, Goucher College, Baltimore, Mary 

 land. 



S. H. Craig, H. K. Mulford Company, Glenolden, 



Pa. 

 U. Dahlgren, Princeton University, Department 



of Biology, Princeton, N. J. 

 H. S. Davis, Department of Biology, University 



of Florida, Gainesville, Fla. 

 M. J. Dorsey, University of West Virginia, Mor 



gantown, W. Va. 



F. Eberson, Mayo CUnic, Rochester, Minn. 



A. A. Eisenberg, St. Vincent's Hospital, Cleve 



land, Ohio. 



C. H. Farr, University of Iowa, Iowa City, Iowa, 

 J. H. Faull, Department of Botany, University of 



Toronto, Toronto, Canada. 

 C. E. Fellers, National Canners Association 



Seattle, Washington. 

 Margaret C. Ferguson, Wellesley College, Welles 



ley, Mass. 

 Miss M. J. Fisher, Cornell University, Ithaca 



N. Y. 

 M. S. Fleisher, St. Louis University, School of 



Medicine, St. Louis, Mo. 



F. P. Gorham, Brown University, Providence, 

 E. I. 



E. B. H. Gradwohl, GradwoM Laboratories, 3514 

 Lucas Avenue, Chicago, 111. 



F. E. Hale, Mt. Prospect Laboratories, Brooklyn, 

 N. Y. 



G. M. Hamel, St. Vincent's Hospital, Cleveland, 

 Ohio. 



E. T. Hance, North Dakota Agricultural College, 

 North Dakota. 



Edith Hannum, H. K. Mulford Company, Glen- 

 olden, Pa. 



F. C. Harrison and E. Hood, Maedonald College, 

 Quebec, Canada. 



M. J. Harkins, Dermatological Ees. Lab., Phila- 

 delphia, Pa. 



G. E. Harmon, Western Eeserve Medical School, 

 Cleveland, Ohio. 



D. J. Healy, Agricultural Experiment Station, 

 Lexington, Kentucky. 



Eobert W. Hegner, School of Hygiene and Public 

 Health, Johns Hopkins University, Baltimore, 

 Maryland. 



P. G. Heineman and C. E. Hixon, U. S. Standard 

 Products Company, 111 W. Monroe Street, Chi- 

 cago, Illinois. 



Grace A. Hill, 2143 Cedar Street, Berkeley, Oal. 



J. Ben Hill, Department of Botany, Penn. State 

 College, State College, Pa. 



W. A. Hiuton, Boston Dispensary, Boston, Mass. 



F. W. Hochtel, University of Maryland Medical 

 School, Baltimore, Maryland. 



Davenport Hooker, University of Pittsburgh, 

 School of Medicine, Department of Anatomy. 



G. J. Hucker, Agricultural Experiment Station, 

 Geneva, New York. 



G. A. Hunter, State College, Pa. 



F. M. Huntoon, H. K. Mulford Company, Glen- 

 olden, Pa. 



A. H. Hutchinson, Department of Botany, Uni- 

 versity of British Columbia, Vancouver, B. C. 



G. F. Leonard, B. E. Squibb and Sons, New 

 Brunswick, New Jersey. 



M. Levine and L. H. James, Iowa State College, 

 Iowa. 



0. B. Lipman, University of California, Berkeley, 

 California. 



H. Maoy, University of Minnesota, St. Paul, Minn. 



P. Masucci, H. K. Mulford Company, Glenolden, 

 Pa. 



L. H. MaoDaniels, Eoberts Hall, Cornell Univer- 

 sity, Ithaca, New York. 



M. S. Markle, Earlham College, Earlham, Indiana. 



F. McAllister, Department of Botany, University 

 of Texas, Austin, Texas. 



