88 



Bulletin No. 21. — Report of a Trip to Australia, made under the 

 Direction of the Entomologist, to Investigate the Natural Enemies 

 of the Fluted Scale. By Albert Koebele. (1890.) [pp. 32.] 



Bulletin No. 22. — Reports of Observations and Experiments in the 

 Practical Work of the Division. (1890.) [pp. 110.] 



Bulletin No. 23. — Reports of Observations and Experiments in the 

 Practical Work of the Division. (1891.) [pp. 83.] 



Bulletin No. 21. — The Boll Worm of Cotton. A report of progress 

 in a supplementary investigation of this insect. B\ T F. W. Mally. 

 (1891.) [pp. 50.] 



Bulletin No. 25.— Destructive Locusts. A popular consideration of 

 a few of the more injurious locusts (or "grasshoppers'-) of the 

 United States, together with the best means of destroying them. 

 By C. V. Riley. (1891.) [pp. Q2, plates 12.] 



Bulletin No. 26. — Reports of Observations and Experiments in the 

 Practical Work of the Division. (1892.) [pp. 95.] 



Bulletin No. 27.—- Reports on the Damage by Destructive Locusts 

 during the Season of 1891. (1892.) [pp. 61.] 



Bulletin No. 28. — The More Destructive Locusts of America. 

 North of Mexico. By Lawrence Bruner. (1893.) [pp. 10.] 



Bulletin No. 29.— Report on the Boll Worm of Cotton. By F. W. 

 Mally. (1893.) [pp. 73.] 



Bulletin No. 30.- — Reports of Observations and Experiments in the 

 Practical Work of the Division. (1893.) [pp. 67.] 



Bulletin No. 31. — Catalogue of the Exhibit of Economic Entomol- 

 ogy at the Wor 1 I's C 'in Exposition. (1893.) [pp. 121.] 



Bulletin No. 32. — Repoi.._ o± Observations and Experiments in the 

 Practical Work of the Division. (1891.) [pp. 59.] 



Bulletin No. 33. — Legislation against Injurious Insects; a compila- 

 tion of the laws and regulations in the United States and British 

 Columbia. By L. O. Hov. ;1. (1893.) [pp. 16.] 



Bulletin No. 1, new see rpT ^ Honey Bee: A manual of in- 



struction x. Apiculture. _ rank Benton. (1896.) [pp. 118, 



pi,. ii.] 



Bulletin No. 2, new series. — Proceedings of the Seventh Annual 

 Meeting of the Association of Economic Entomologists. (1895.) 

 [pp. 100.] 



Bulletin No. 3, new series. — The San Jose Scale: Its occurrence in 

 the United States with a ful' ,- »nt of its life history and the 



remedies to be used against m *?. Howard and C. L. 



Marlatt. (1896.) [pp. 80, plate 1.] 



