FOREST BOTANY 371 



Beitton, W. E. (7356) 



EEPOET OF THE TEEE PEOTECTION EXAMINING BOAED. Conn. Agr. Expt. Sta. 



Bull. 231, 12 pp. 1921. 



Collingwood, G. H. (7357) 



fiest aids in teee stirgery. Amer. Forests and Forest Life 36: 105-108, 

 illus. 1930. 



Collins. J. F. (7358) 



cavity woek. Conn. Agr. Expt. Sta. Bull. 263 : 154-155. 1924. 



(7359) 



peactioal teee surgery. U. S. Dept. Agr. Yearbook 1913 : 163-190, illus. 



1914. 



(7360) 



teee stjegeey. U. S. Dept. Agr., Farmers' Bull. 1178, 32 pp., illus. 1920. 



Ceomie, G. A. (7361) 



electeical injuey to street trees. Sci. Amer. Sup. 77 : 36-37, illus. 1914. 



Davey Institute of Tree Stjegeey. (7362) 



the caee of evergreens. 22 pp., illus. Kent, Ohio. 1929. 



(7363) 



instruction books. Nos. 1-14, 16-22, illus. Kent, Ohio. 1914-15. 



Davey, John. (7364) 



the tree doctor: a book on tree culture. 87 pp., illus. Akron, Ohio. 

 1902. 



(7365) 



THE TREE DOCTOR ; THE CARE OF TREES AND PLANTS. Ed. 2, 222 pp., illllS. Akron, 



Ohio. 1907. 



Davey, M. L. (7366) 



tree surgery as a science. Conservation 14 : 533-538, illus. 1908. 



Davey, P. H. (7367) 



shade tree problems in peactice. Natl. Shade Tree Conf. Proc. 5: 14-18. 



1929. 



Davey Teee Expert Co., Inc. (7368) 



the preservation of our trees, showing scientific tree surgery as prac- 

 tised by john davey. 60 pp., illus. Kent, Ohio. 1912. 



(7369) 



reference book on tree surgery practice. 14 sees., illus. Kent, Ohio. 



1929. 



Ebel, M. C. (7370) 



tree surgery investigated. Gard. Chron. Amer. 21: 163-166. 1917. 



Grose, L. R. (7371) 



repairing storm-damaged trees. Mass. Agr. Col. Ext. Leaflet 47, 12 pp., 

 illus. 1922. 



House, H. D. (7372) 



tree surgery, good and bad. New Country Life 32 (4) : 28-32, illus. 1917. 



Johnson, L. M. (7373) 



tree surgery. Gard. Chron. Amer. 32 (2) : 40-46. 1928. 



Lawrence, C. C. (7374) 



open cavities vs. filled cavities. Tree Talk 7 (3) : 8-10, illus. 1926. 



(7375) 



saving split trees. Tree Talk 5 (2) : 7-9, illus. 1923. 



Levison, J. J. (7376) 



filling tree cavities. Mycologia 1(2): 77-79, illus. 1909. 



(7377) 



how far to go in cavity filling. Amer. Forestry 23 : 100-101, illus. 1917. 



• (7378) 



simple methods of preventing and treating injured bark, a suitable 



work for winter months. Amer. Forestry 22 : 741-742, illus. 1916. 



