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GO 
Aspidiotus perniciosus Smith, Rept. Ent. Dept. N. J. Agr. Col. Exp. Sta. for 
1897, pp. 436-492, (1898). 
do Perkins, Bull. No. 60, Vt. Agr. Exp. Sta., pp. 12-14, 
(1898). 
do Forbes, 20th Rept. St. Ent. 111., pp. 1-25, (1898). 
do Emory, Trans. Penin. Hort. Soc., pp. 107-113, (1898). 
do Bancroft, Trans. Penin. Hort. Soc., pp. 113-128, (1898). 
do Webb, Trans. Penin. Hort. Soc., pp. 114, 115, (1898). 
do Smith, Bull. No. 17, n. s., Div. Ent. U. S. Dept. Agr., 
pp. 32-.39, (1898).* 
do Fletcher, Rept. Ent. Soc. Ontario, vol. XXVIII, pp. 
78, 79, (1898).* 
do Johnson, Can. Ent., vol. XXX, pp. 82, 83, (1898).* 
do Webster, Can. Ent. vol. XXX, pp. 169-172, (1898).* 
do Felt., Bull. 17, n. s., Div. Ent. U. S. Dept. Agr., pp. 22, 
2.3, (1898).* 
do Hopkins, Bull. 17, n. s., Div. Ent. U. S. Dept. Agr., 
pp. 44, 45, (1898).* 
do Discussions, Bull. 17, n. s., Div. Ent. U. S. Dept. Agr., 
pp. 50-55, (1898).* 
do Matrdorff, Zeits. fur Pflanzenkranheiten, vol. VIII, p 
1, (1898).* 
do Sorauer, Zeits. fur Pflanzenkrankheiten, vol. VIII, p. 
46, (1898),* 
do Sorauer, Zeits. fur Pflanzenkheiten, vol. VIII, p. 104, 
(1898).* 
do Stedman, Bull. No. 41, Mo. Agr. Exp. Sta., p. 35, 
(1898). 
do Hunter, Bull. Dept. Ent. Kans. Univ., p. 62 (1898). 
do Howard, Bull. No. 12, n. s., Div. Ent. U. S. Dept. Agr., 
pp. 1-31, (1898). 
do Johnson, Can. Ent., vol. XXXI, pp. 87, 88, (1899).* 
do Scott, Bull. 20, n. s., Div. Ent. U. S. Dept. Agr., pp. 
83, 84, (1899).* 
do d’Utro, Bull. Inst. Agron, S. Paulo, vol. X, Nos. 11 
and 12, ( 1899).* 
do Goethe, Bericht Kgl. Lehraustadt Obst. Wein.andGar- 
tenbau, Geisenheim a R., p. 16, (1899).* 
do Newstead, Reprint Jour. Royal Hort. Soc., p. 8, (1899).* 
do Webster, Can. Ent., vol. XXXI, p. 4, (1899).* 
do King, Can. Ent., XXXI, pp. 225, 226, (1899).* 
do Howard and Marlatt, Bull. 20, n.s., Div. Ent. U. S. Dept. 
Agr., pp. 30-.39, (1899). 
do Howard, Year-book Dept. Agr., pp. 143, 144, (1899). 
do Johnson, Bull. No. 20, n. s., Div. Ent. U. S. Dept. Agr., 
(1899).* 
do Reh, Mitth. Nat. Mus. Hamburg, vol. XVI, pp. 125- 
141, (1899).* 
do Cockerell, Bull. No. .32, Ariz. Agr. Exp. Sta., p. 274, 
(1899).* 
do Hunter, Kans. Univ. Quart., vol. VIII, No. 1, pp. 10, 11, 
(1899). 
