106 NATL. ARBORETUM CONTRIB. NO. 2 U.S. DEPT. AGR. 



Page 



P. H. S., Brooks, See Provincial Horticultural Station, Brooks, Alberta, Canada 



Pierce, J. L. (Mr. & Mrs.) 41 



Porter, A. J 78, 80 



Pratt, A. E 18 



Preston, Isabella 27, 31, 32, 34, 36, 40, 43, 46-49, 56-58, 60, 62 



Pringle, Cyrus G 14 



Provincial Horticultural Station, Brooks, Alberta, Canada .... 26, 40, 42, 65, 72 

 Purdom, William 12, 20, 23 



R. C. Notcutt, Ltd., See Notcutt, R. C, Ltd. 



Reed, George M 54, 77 



Rick, Philip 7 



Rochester, N. Y., Durand-Eastman Park 42 



Rochester, N. Y., Parks System 14, 16, 21, 41, 42 



Rock, J. F 12 



Rosthern, Expt. Farm, Canada Dept. of Agr 27, 30, 72, 78 



Roy, William Ormiston 50 



Royal Botanic Gardens, Kew, Richmond, Surrey, England 8,11 



Russia, Botanical Gardens, Petrograd 28 



Russia, Imperial Botanical Gardens 6, 25, 33 



Salamandyck, William 65 



Sargent, Charles S 13-15, 19, 21, 22, 24, 47 



Saunders, William 32, 46, 47, 50, 53, 55, 56 



Sax, Karl 28, 29, 38, 46, 70, 71, 73 



Scanlon, E. H., See Scanlon, E. H., & Associates 



Scanlon, E. H., & Associates 58 



Scott, Saskatchewan, Canada Dept. of Agr 55 



Shakespeare Cultural Garden (The) 58 



Siebenthaler Nursery 14 



Sim, William, Nursery 34, 62, 63 



Simpson Orchard Co., Inc 51, 75 



Skinner, F. L 57 



Skirm, G. W 41 



Slavin, Arthur D 14,16 



Slavin, Bernard H 14, 16, 42 



Slavin, Katherine Clark 42 



South Dakota Agr. Expt. Sta 13, 16, 25, 26, 28, 30, 31, 33, 39, 42-44, 



55, 60, 62, 63 



Spath, Ludwig, Nurseries _.. 35, 48, 49, 75 



Springer, W. A 7 



Stark Brothers 7 



Stephens, J. L 9 



Stern, F. C 23 



Swarthmore College 19, 37, 69 



Tanner, J. A. 81 



Thayer, Baynard ( Mrs. ) 62 



Thorns, Louis 14 



U.S. National Arboretum 18, 21, 36, 58 



U.S. Plant Introduction Station, Glenn Dale, Md. 21, 36, 37, 52, 59 



