1212 The American Naturalist. [December, 
6. New Notes on the Hessian Fly, by Jonn MARTEN, showing that 
there may bea fourth brood at times. 
7. Life-History of Baris confinis, by C. M. WEED, showing that this 
insect develops in Spanish needles (Bidens sp. 
8. Life-History of Certain Aphididae, by C. M. WEED, showing the 
autumn and winter history of a number of little-known species. 
9. Life-History of Pimpla inguisiter, by C. M. WEED, detailing ob- 
servations on the egg and larval history of this insect. 
ro. Contagious Diseases of Chinch Bug, by F. H. Snow, reporting 
a number of successful experiments in spreading contagious disease 
among chinch bugs. 
rr. Host Relations of Hymenopterous Parasites, by L. O. HOWARD, 
showing the need of more precise knowledge of breeding habits of 
parasites, and the value of knowing the biological laws governing them, 
The following papers were read before the Association of Official 
Economic Entomologists : 
12. Address of the President, by C. V. RıLEv, reviewing recent en- 
tomological work of the Department of Agriculture, and many other 
points of general interest. 
13. Our Work and Bulletins, by A. J. Coox. A general discussion 
of the scope of entomological work at the stations, and methods of 
publication. 
14. Fertilizers as Insecticides, by J. B. SwrrH, showing the value of 
potash salts as insect destroyers. 
15. The Habits of Pachyneuron, by L. O. Howarp, 
16. Notes on the Plum Curculio, by J. B. Smrru, reporting a number 
of observations upon this insect. 
17. Notes on a New Apple Pest, by F. W. GopiNc. 
18. Notes on the Genus Phylloxera, by C. V. RILEY. 
19. An Experience with the Rose Bug, by J. B. SurrH, showing the 
inefficiency of nearly all ordinary insecticides. 
20. Some Questions Relating to Aphides, by J. B. SwrrH, dis- 
cussing the poriferous structure of the antennz, and its significance. 
21. Notes on the Plum Curculio and Gouger, by C. P. GILLETTE, 
reporting observations on life-history, and experiments with remedies. 
22. Original Work at the Stations, by C. V. RILEY. A general dis- 
cussion of the subject. 
23. Notes on Beet-Root Insects, by L. BRUNER, detailing observa- 
tions made in Nebraska, 
24. Invasion by the Clover-Leaf Beetle, by J. B. SMITH. 
