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 



