LITERATURE CITED. 



(1) Avebna-Sacca, R. 



1912. Gangrena do trigo. Bol. Agr. [Sao Paulo], s. 13, no. 3, p. 234. 



(2) Bastiax, H. Charlton. 



1865. Monograph on the Anguillulitla?. ... In Trans. Linn. Soc. Lon- 

 don, v. 25, pt. 2. p. 73-180, pi. 9-13. 



(3) Bauee, Feancis. 



1823. Microscopical observations on the suspension of the muscular 

 motions of the Vibrio tritici. In Phil. Trans. Roy. Soc. Lon- 

 don, v. 113. pt. 1. p. 1-16. pi. 1-2. 



(4) Bessey. Ebxst A. 



1905. A nematode disease of grasses. In Science, n. s., v. 21. no. 532, 

 p. 391-392. 



Byaes. L. P. 



(5) 1914. Preliminary notes on the cultivation of the plant parasitic 



nematode, Heterodera radicicola. In Phytopathology, v. 4, 

 no. 4, p. 323-326. pi. 21. 



(6) 1917. Tylenchus tritici on wheat. In Phytopathology, v. 7, no. 1, 



p. 56-57. 



(7) 1918. A serious eelworm or nematode disease of wheat ... U. S. 



Dept. Agr., Off. Sec. Circ. 114, 7 p., illus. 



(8) 1919. The eelworm disease of wheat and its control. U. S. Dept. Agr., 



Farmers Bui. 1041. 10 p., illus. 



(9) Johnson, A. G.. and Lei-eel, R. W. 



1919. The wheat nematode, Tylenchus tritici, attacking rye, oats, spelt. 

 and emmer. In Phytopathology, v. 9. no. 7, p. 283-284. 



(10) Coleman. D. A., and Regan, S. A. 



1918. Nematode galls as a factor in the marketing and milling of 

 wheat. U. S. Dept. Agr. Bui. 734, 16 p., illus. 



(11) Davaixe. C. 



1S57. Recherches sur PAnguillule du Ble XielU§ Considered au Point 

 de Vne de THistoire NatureUe et de ['Agriculture ... 80 p., 

 3 pi. Paris. 



( 12 ) Diesing, Caeolo Maueitio. 



1851. Systema Helminthum. v. 2. Vindobonae. 



(13) Du.jaedix. F. 



1845. Histoire NatureUe des Helminthes ou Vers Intestinaux. 654 p., 

 atlas (12 pi.). Paris. 



(14) Fkoiime. F. D. 



1917. Tylenchus tritici on wheat in Virginia. In Phytopathology, v. 7. 

 no. 6. p. 452-453, 1 fig. 



(15) Habeelaxdt. F. 



1S77. Beitrage fiber das Vorkommen und die Entwicklungsge- 



schichte des Weizenalchens. In Wiener Landw. Ztg., No. 40. 

 p. 456-457. 

 38 



