960 
Journal of Agricultural Research voi. xxiii, No. i* 
(8) Hunter, Alexander. 
1803-04. georgical essays. 6 v., illus. York, England. 
(9) Knight, Thomas Andrew. 
1920. ON RAISING NEW AND EARLY VARIETIES OF THE POTATO. In Trans. 
Hort. Soc. Lond., v. i, ed. 3, p. 57-95 [i. e. 59]. 
(10) - 
1841. A SELECTION FROM THE PHYSIOLOGICAL AND HORTICULTURAL PAPERS, 
PUBLISHED IN THE TRANSACTIONS OF THE ROYAL AND HORTICULTURAL 
SOCIETIES... xii, 379 p., 3 fig., 8 pi. London. 
(11) Krantz, F. A., and Bisby, G. R. 
1921. THE RELATION OF MOSAIC TO RUNNING-OUT OF POTATOES IN MINNESOTA. 
Minn. Agr. Exp. Sta. Bui. 197, 31 p., 18 fig. References, p. 29-31. 
(12) Marshall, [William]. 
1788. potatoes. (In his Rural economy of Yorkshire... v. 2, p. 51-67. 
London.) 
(13) Melhus, I. E. 
1917. notes on mosaic symptoms on Irish potatoes. (Abstract.) In 
Phytopathology, v. 7, no. 1, p. 71. 
(14) Murphy, Paul A. 
1921. investigation OF potato diseases. In Canada Exp. Farms Bui. 44, 
ser. 2, 86 p., 34 fig. Literature cited, p. 83-86. 
(15) Orton, W. A. 
1914. POTATO WILT, LEAF-ROLL, AND RELATED DISEASES. U. S. Dept. AgT. 
Bul. 64, 48 p., 16 pi. Bibliography, p. 44-48. 
(16) QuanjER, H. M. 
1920. THE MOSAIC DISEASE OF THE SOLANACEAE, ITS RELATION TO THE PHLOEM- 
NECROSIS, and its EFFECT upon potato culture. In Phytopathology, 
v. 10, no. 1, p. 35-47, 14 fig. Literature cited, p. 47. 
(17) Shultz, E. S., and Folsom, Donald. 
1920. TRANSMISSION OF THE MOSAIC DISEASE OF IRISH POTATOES. In Jour. 
Agr. Research, v. 19, no. 7, p. 315-338, pi. 49“56- 
(18) - Hildebrandt, F. Merrill, and Hawkins, Lon A. 
1919. investigations on the mosaic disease of the irish potato. Pre¬ 
liminary paper. In Jour. Agr. Research, v. 17, no. 6, p. 247-274, pi. 
A-B (col.), pi. 25-30. Literature cited, p. 272-273. 
(19) Stephens, Henry. 
1908-09. BOOK OF THE FARM DEALING EXHAUSTIVELY WITH EVERY BRANCH OF 
agriculture. 5th ed. rev. and largely rewritten by James Mac¬ 
donald. 3 v. in 5, illus. Edinburgh and London. 
(20) Stewart, F. C. 
1916. OBSERVATIONS ON SOME DEGENERATE STRAINS OF POTATOES. N. Y. 
(Geneva). Agr. Exp. Sta. Bul. 422, p. 319-357, 12 pi. 
(21) Stuart, William. 
1915. potato breeding and selection. U. S. Dept. Agr. Bul. 195, 35 p., 
2 fig., 16 pi. 
(22) Sutton, Arthur W. 
1898. the potato. In Jour. Roy. Agr. Soc. England, ser. 3, v. 9, pt. 4, no. 36, 
p. 1581-653, 38 fig., 1 fold. pi. 
(23) Vries, Hugo de. 
1878. BEITRAGE ZUR SPECIELLEN PHYSIOLOGIE LANDWIRTSCHAFTLICHER CUL- 
TURPFLANZEN. V. WACHSTHUMGESCHICHTE DER KARTOFFELPFLANZE- 
In Landw. Jahrb., Bd. 7, p. 591-682, pi. 16-17 (col.). 
(24) Waid, C. W. 
1907. results OF hill SELECTION OF SEED potatoes. In Amer. Breeders* 
Assoc. Rpt., v. 3, p. 191-198. 
(25) Webber, H. J. 
1908. PLANT-BREEDING FOR FARMERS. V. METHODS OF IMPROVING POTATOES. 
In N. Y. (Cornell) Agr. Exp. Sta. Bul. 251, p. 322-332, fig. 144. Some 
important books ... p. 331-332. 
(26) Wellington, R. 
1920. THE USELESSNESS OF HILL SELECTION UNDER CONDITIONS WHERE RAPID 
degeneration or “running-out” is prevalent. In Proc. Amer. 
Soc. Hort. Soc., 16th, 1919, p. 175-179. 
(27) Whipple, O. B. 
1920. line-selection work with potatoes. In Jour. Agr. Research, v. 19, 
no. 11, p. 543 - 573 - 
