Henry F. Holtz

Frederick John Sievers, Henry F. Holtz

Fred DeForest Heald, State College of Washington. Agricultural Experiment Station, Henry F. Holtz, Joseph Stuart Caldwell, George Alfred Olson, C. C. Thom, Charles Alden Magoon, Gerhard H. Jensen, B. F. Dana, D. C. George

M. A. Yothers, Axel Leonard Melander, State College of Washington. Agricultural Experiment Station, Henry F. Holtz, George Alfred Olson, Edward Franklin Gaines, Edwin George Schafer, Sophia Eckerson, State College of Washington. Adams Branch Experiment Station, William Hislop, Carroll Evan Howell

George Severance, L. J. Smith, Ernest Reuben Johnson, Fred DeForest Heald, Anthony Spuler, Axel Leonard Melander, Frederick John Sievers, H. Hackedorn, State College of Washington. Agricultural Experiment Station, Henry F. Holtz, Jerry Sotola, R. P. Bean