Tables 



I'lasslQfii- 

 tluii lit). 



A9.3: 



20 



211 



21 « 

 22 



23 



24 



25 



26 



27 



28 



29 

 30 



31 



32 



33 



A9.4: 



1 

 18 



22 

 A9.5: 



1 



A9. E>'TO:nOI.O«Y OIVISIOX— Continued 



Btilletiiii!) (old series) — Continued 



No. 20. Eoot-knot disease of peach, orange, and other plants in Florida, 

 due to work of anguilliila; by .1. C. Neal. 1889. 31 pp. 21 pi. 



No. 21. Report of trip to Australia to investigate natural enemies of tinted 

 scale; bv Albert Koebele. 1890. 32 pp. 

 Same, rev. ed. 1890. 32 pp. 



No. 22. Reports of observations and experiments in practical Avork of the 

 Division, made under direction of the P^ntomologist. 1890. 110 pp. 



No. 23. Rei)orts of observations and experiments in jtractical Mork of the 

 Division, under direction of the Entomologist. 1891. 83 pp. 



No. 24. Boll worm of cotton, report of ])rogress in supplementary investi- 

 gation of this insect; by F. W. 3Iallv. 1891. 50 pp. 



No. 25. Destructive locusts, a ])opular consideration of a few of the more 

 injurious locusts (or "grasshoppers") of U. S., with best means 

 of destroying them; byC. V. Riley. 1891. 62 pp. 12 pi. 1 map. 



No. 26. Reports of observations and experiments in practical work of the 

 Division, made under direction of the Entomologist. 1892. 95 pp. 



No. 27. Reports on damage by destructive locusts during 1891. 1892. 



No. 28. More destructive locusts of America north of Mexico; by Lawrence 

 Bruner. 1893. 40 pp. 



No. 29. Boll worm of cotton; by F. W. Mally. 1893. 73 pp. 2 pi. 



No. 30. Reports of observations and experiments in practical work of the 

 Division, made under direction of the Entomologist. 1893. 67 pp. 



No. 31. Catalogue of exhibit of economic entomology at World's Colum- 

 bian Exposition, Chicago, 111., 1893. 1893. 121 pp. 



No. 32. Reports of observations and experiments in practical work of the 

 Division, made under direction of the Entomologist. 1894. 59 pp. 



No. 33. Legislati(5n against injurious insects, compilation of laws and regu- 

 lations in United States and British Columbia; bv L. 0. Howard. 

 1895. 46 pp. 



Circulars (first series) 



[Note. — This serie.s i.s described as " a mLseellaneous and indifferent series, hardly 

 worthy to be entitled to the dignity of being considered publications." The 

 whole number exceeded 40, nearly all being circular letters, and of which Nos. 1, 

 18, and 22 are the only ones known to exist.] 



No. 1 c. [Relating to silk worm eggs.] n. d. (Circ. ) 



No. 18. [Establishment of branch of economic ornithology.] July 1, 



1885. (Circ.) 



No. 22. [Bee culture.] July 28, 1885. (Circ.) 



Circulars, second series 



No. 1. Condensed information concerning some of the more important 



insecticides. INIay, 1891. 7 pp. 

 No. 2. Hop plant-louse, and the remedies to be used against it. June, 



1891. 7 pp. 1 pi. 

 Same, [new ed. Aug. 1899.] 7 pp. 1 pi. 

 No. 3. Important enemy to fruit trees; San Jose scale, its appearance in 



Eastern U. S. ; measures to be taken to prevent its spread and to 



destroy it; by L. O. Howard. April 4, 1893. n. t. p. 10 pp. 

 No. 4. Army worm, circular relative to; by L. 0. Howard. June 16, 



1894. ' n. t. p. 5 pp. 

 No. 5. Carpet beetle or " Buffalo moth " ; 



, 1894. n. t. p. 4 pp. 

 No.^ 6. Mexican cotton-boll weevil; by L. 



n. t. p. 5 pp. 

 Same, [Spanish ed.] 6 pp. 

 [For revi.sion, see A9.5:14.] 

 No. 7. Pear-tree psylla; by C. L. Marlatt. 

 No. 8. Imported elm leaf-beetle; by C. L. ^Marlatt. 



4 pp. 

 No. 9. Canker-worms; by D. W. Coquillett. May 24, 1895. n. t. p. 



4 pp. 



by L. O. Howard. Sept. 8, 

 O. Howard. April 



1895. 



May 1, 1895. n. t. p. 

 May 23, 1895. 



8 pp. 

 n. t. p. 



6Q 



