8. Sitton, B. G. & Akin, E. O. _Grafting Wax Melter,_ U. S. Department Leaflet 202. Free from U. S. Department of Agriculture, Washington, D. C. 9. Sitton, B. G. _Pecan Grafting Methods and Waxes._ U. S. Department of Agriculture Circ. 545. May be had from U. S. Department of Agriculture, Washington, D. C. 10. Sitton, B. G. _Vegetative Propagation of the Black Walnut._ Mich. Sta. Tech. Bul. No. 119. Sept., 1931. Available from Michigan State College, E. Lansing. 11. MacDaniels, L. H. _Nut Growing._ Cornell Univ. Ext. Bul. 701. From College of Agriculture, Ithaca, New York. 12. Haseman, L. _The Walnut Caterpillar._ Missouri Exp. Sta. Bul. 418. 13. Talbert, T. J. _Nut Tree Culture in Missouri._ Mo. Exp. Sta. Bul. 454. May be had from Agr. Exp. Station, Columbia, Mo. 14. Schuster, C. E. _Filberts._ Oregon State College Ext. Bul. 628. May be had from Oregon State College, Corvallis, Oregon. 15. Schwartze, C. D. _Filbert Culture._ Washington State Col. Ext. Bul. 263. May be had from Extension Service, Washington State College, Pullman, Wash. 16. Sherman, L. W. and Ellenwood, G. W. _Topworking and Bench-grafting Walnut Trees._ Special Circ. 69. May be had from Agr. Exper. Sta., Wooster, Ohio. 17. Slate, G. L. _Filberts._ N. Y. State Agr. Exp. Sta. Cir. 192. Free from Experiment Station, Geneva, N. Y. 18. _DDT to Control Pecan Weevil._ Multigraphed, 1948. Available free from Division of Horticulture, Tenn. Dept. of Agriculture, Nashville 3, Tenn. 19. Blake, M. A. and Edgerton, L. J. _Experience with Blight Resistant Chestnuts in New Jersey._ Bul. 717 N. J. Agr. Exp. Sta., New Brunswick, N. J. 20. Yerkes, Guy E. _Propagation of Trees and Shrubs._ U.S.D.A. Farmers' Bul. No. 1567, available from Supt. of Documents, U. S. Gov't Printing Office, Washington 25, D. C., price 10c (coin). 21. Cox, John A., et al. _Top Working Pecan Trees._ Ext. Circ. 209. Available free from Louisiana State University, University, Louisiana. 22. Hilton, R. J. _Frameworking Fruit Trees._ Farmers' Bulletin 136 of the Dominion Department of Agriculture. Available from Dominion Department of Agriculture, Ottawa, Ontario, Canada. (Framework grafting technique is adapted to top-working large seedling nut trees). 23. Snyder, John C. _Pollination of Tree Fruits and Nuts._ Ext. Bul. 342. Washington State College, Pullman, Washington. 24. Smith, Gilbert L. _Practical Nut Growing._ 60 pp. illus. $1.50 from author, Wassaic, N. Y.