. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. SHADE TREE INSECTS 61 Britton, \V. E. Conn. State Ent. Rpt. 16:111-115. 1917. Hartzell, F. Z. Jour. Econ. Ent. 4(5) :419-420. 1911. Hartzell, F. Z. N. Y. Agr. Exp. Sta. Bui. 331:530-549. 1910. Howard, L. O. U. S. Dept. Agr. Farmers' Bui. 721. 1916. Johnson, F. U. S. Dept. Agr. Bur. Ent. Bui. 97, Part 3. 1911. McDaniel, E. I Mich. Agr. Exp. Sta. Spec. Bui. 243:14-15. ,*7 'y'. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. SHADE TREE INSECTS 61 Britton, \V. E. Conn. State Ent. Rpt. 16:111-115. 1917. Hartzell, F. Z. Jour. Econ. Ent. 4(5) :419-420. 1911. Hartzell, F. Z. N. Y. Agr. Exp. Sta. Bui. 331:530-549. 1910. Howard, L. O. U. S. Dept. Agr. Farmers' Bui. 721. 1916. Johnson, F. U. S. Dept. Agr. Bur. Ent. Bui. 97, Part 3. 1911. McDaniel, E. I Mich. Agr. Exp. Sta. Spec. Bui. 243:14-15. ,*7 'y'. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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