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ALLARD: MOSAIC DISEASE OF TOBACCO 457 
46. 1905. Hunger, F. W. T. Untersuchungen und Betrachtungen 
iiber die Mosaikkrankheit der Tabakspflanze. Zeits. 
Pflanzenkrank. 15: 257-311. 
47. 1905. Jensen, Hjalmar. Uber die Bekimpfung der Mosaik- 
krankheit der Tabakpflanze. Centralb. Bakt. Zweite 
Abt. 15: 440-445. 
48. 1905. Hunger, F.W.T. Neue Theorie zur Atiologie der Mosaik- 
krankheit des Tabaks. Ber. Deuts. Bot. Ges. 23: 
415-418. : 
49. 1906. Delacroix, Georges. La nielle du tabac et la ‘‘ maladie 
des taches blanches.’’ Ann. Inst. Nat. Agron. II. 5: 
158-20 
50. 1906. Baur, E. hee die infektidse Chlorose der Malvaceen. 
Sitzungsber. K6nigl. Preuss. Akad. Wiss. 1906: 11-29. 
51. 1907. Hunger, F. W. T. Beschaduwing als prophylaxis tegen 
de mozaiek-ziekte tabak. Mededeel. Depart. 
52. 1909. Sorauer, Paul. Die Raa des Tabaks. Hand- 
buch der Pflanzenkrankheiten 1: 678-683. 
Mosaic is classed as a non-parasitic, enzymatic disease. The work of Bouygues 
and Perreau is cited as an example of what selection for resistance to mosaic can 
accomplish, The fact seems to have been overlooked that Bouygues and Perreau 
worked with a rust disease and not true mosaic. . 
53. 1909. Clinton, G. P. Notes on fungous diseases, etc., for 1908.” 
Connecticut Agr. Exp. Sta. Bien. Rep. 1907-1908: 
857-858. pl. 66. f. b. 
54. 1909. Perreau, . Note sur la nielle des tabacs. Bull. Soc. 
Bot. France 56: LIII-LV. 
Perreau refers to the rust or leaf-spot disease previously mentioned by him and 
Bouygues in 1904. Perreau stated that the disease appeared on land which had not 
been grown to tobacco for 30 years. An abstract of these results is given under the 
heading “‘ Notes on the mosaic disease of tobacco,” in the Experiment Station Record, 
U. S. Department of Agriculture, 23: 649. IgI0. 
55- 1910. Hinson, W. M., & Jenkins, E. H. The management of 
tobacco seed beds. Connecticut Agr. Exp. Sta. Bull. 
166: 1-11. f. 7. 
These authors state that there is no evidence to show that infection arises from 
. the stems plowed into the fielc 
56. 1910. Lodewijks, J. A., Jr. Zur Mosaikkrankheit des Tabaks. 
Rec. Trav. Néerland. 7: 107-129. Abstract in Bot. 
Centralb. 114: 518. 
