24 MISC. PUBLICATION 7 4, U. S. DEPT. OF AGRICULTURE 



(15) Collins, C. W. 



1926. OBSERVATIONS ON A RECURRING OUTBREAK OF HETEROCAMPA GUT- 

 TIVITTA WALKER AND NATURAL ENEMIES CONTROLLING IT. J0U1\ 



Agr. Research 32 : 689-699. 



(16) Craighead, F. C. 



1915. CONTRIBUTIONS TOWARD A CLASSIFICATION AND BIOLOGY OF THE NORTH 

 AMERICAN CERAMBYCIDAE, LARVAE OF THE PRIONIN^E. U. S. Dept. 



Agr., Off. Sec. Rpt. 107, 24 p., illus. 



(17) 

 (18) 



(19) 



1919. protection from the locust borer. U. S. Dept. Agr. Bui. 787, 1: 

 p., illus. 



1923. NORTH AMERICAN CERAMBYCID LARVAE. A CLASSIFICATION AND THE 

 BIOLOGY OF NORTH AMERICAN CERAMBYCID LARVAE. Canada Dept. 



Agr. Ent. Branch Bui. (n. s.) 27, 238 p., illus. 



1927. THE TURPENTINE BORER ON THE FLORIDA NATIONAL FOREST. Forest 



Worker 3 (4) : 11-12. 



(20) and Hofer, G. 



1921. PROTECTION OF MESQUITE CORDWOOD AND POSTS FROM BORERS. U. S. 



Dept. Agr. Farmers' Bui. 1197, 12 p., illus. 



(21) Davis, J. J. 



1929. common white grubs. U. S. Dept. Agr. Farmers' Bui. 940, 27 p., 

 illus. 



(22) Dusham, E. H. 



1921. the painted hickory borer. N. Y. Cornell Agr. Expt. Sta. Bui. 



407, p. 173-203, illus. 



(23) Essig, E. O. 



1926. insects of western north America. . . 1035 p., illus., New York. 



(24) Evenden, J. C. 



1926. the pine butterfly, neophasia menaphia felder. Jour. Agr. Re- 

 search 33 : 339-344, illus. 



(25) Felt, E. P. 



1905. insects affecting park and woodland trees. N. Y. State Mus. 

 Mem. 8, 2 v., illus. 



(26) 



1917. key to American insect galls. N. Y. State Mus. Bui. 200, 310 

 p., illus. 



(27) and Joutel, L. H. 



1904. monograph of the genus saperda. N. Y. State Mus. Bui. 74, 

 Ent. 20, 86 p., iUus. 



(28) Fracker, S. B., and Granovsky, A. A. 



1928. AIRPLANE DUSTING TO CONTROL THE HEMLOCK SPANWORM. JOUl*. 



Forestry 26 : 12-33, illus. 



(29) Garman, H. 



1915. THE LOCUST BORER ( CYLLENE ROBINIAE) AND OTHER INSECT ENEMIES 



of the black locust. Ky. State Forester Bien. Rpt. 2: [32]-63. 

 [Also Ky. Agr. Expt. Sta. Bui. 200, p. 99-135, illus. 1915.] 



(30) Graham, S. A. 



1922. the red turpentine beetle in itasca park. Minn. State. Ent. 

 Rpt. 19: [15]-21. 



(El ) 

 (32) 



1925. two dangerous defoliators of jack pine. Jour. Econ. Ent. 

 18 : 337-345. 



1926. BIOLOGY and control of the white-pine weevil, pissodes strobi 



peck. N. Y. Cornell Agr. Expt. Sta. Bui. 449, 32 p., illus. 



(33) and Baumhofer, L. G. 



1927. THE PINE-TIP MOTH IN THE NEBRASKA NATIONAL FOREST. JOUT. 



Agr. Research 35 : 323-333, illus. 



(34) Greene, C. T. 



1917. two new cambium miners (DiPTERA). Jour. Agr. Research 10:313- 

 318, illus. 



(35) Herbert, F. B. 



1920. cypress bark scale. U. S. Dept. Agr. Bui. 838, 22 p., illus. 



