EEPORT ON NATIONAL MUSEUM. 179 



Riley, Charles Y. The wheat-stalk worm on the Pacific coast. 



(Amer. Nat., Dec, 1882, xvi. p. 1017-1018.) 



Announces reception, from J. A. Starner, of Isosoma tritici, injuring wheat- 

 stalks in Washington Territory; prior notices of this insect. 



The bean weevil. 



(Rural New Yorker, 9 Dec., 1882.) 



Answers inquiry of R. J. B.; gives habits of and means to be pursued 

 against Bruchus fabce. 



Emulsions of petroleum and their value as insecticides. 



(Rural New Yorker, 9 Dec, 1882.) 



Abstract of a paper read at meeting of American Association for the Ad- 

 vancement of Science, at Montreal, , 1882 ; gives results of experiments 



made by several persons (uamed) upon methods of using petroleum as an in- 

 secticide without injury to plants; states that soap and milk emulsions are 

 the most available, and gives methods of preparing them, 



[United States] Department of AgricuUure — Entomologist, 18S2 



(C. Valentine Riley). Report of the Entomologist. (Report [U. S.] 

 Commiss. Agric. for 1881 and 1882, 1882 [Jan. 1, 1883J, pp. Gl-214, 

 pi. 1-20, tcith 3 p. expl. of plates.) 



Separate author's edition, entitled "Report of the Entomologist, Charles 



V. Riley, M. A., Ph. D., for the fiscal year ending June 30, 1882. From the 



I report of the Department of Agriculture for the year 1881. Issued 



December 1, 1882." Wash., Government, t.-p. cover -f- t.-p,, 8-f- 167 p. (with 



original pagination also), 20 pi. 



Consists of an "Introduction," sketching the plan of the report, the past 

 and present organization and work, the projects and future needs of the en- 

 tomological division of the U. S. Department of Agriculture, and the relation 

 of this division to the IJ. S. Entomological Commission and the National Mu- 

 seum ; of "Extracts from correspondence," containing brief notes Tipon nu- 

 merous insects not otherwise treated in the report ; and of chapters bearing 

 the following titles, cited, unless otherwise indicated, under the name of C. 

 V. Riley as author, to which chapters reference should be made for further 

 analysis: — Silk culture. — Pyrethrura: its use as an insecticide. — Chinch-bug 

 notes. — The army-worm Leucania unipuncta Haw. — Hubbard, H. G. Scale- 

 insects of the orange. Remedies and their application. — Insects affecting the 

 rice plant. — Insects affecting com or maize. — The cotton- worm, Alefia xylina 

 Say. — Miscellaneous insects. — Comstock, J. H. Report on miscellaneous 

 insects. 



Silk-culture. (Report of the Entomologist, 1881-1882, pp. 



67-76 [7-lC].) 



A report of work done by the entomological division of the U. S. Depart- 

 ment of Agriculture in the promotion of silk-culture in 1881-1882; with ex- 

 tracts from letters and reports of correspondents ; list of the now active silk- 

 culture associations and business enterprises, and statement of work done by 

 them; reprint of author's preface to 2d ed. of special report No. 11 of U. S. 

 Department of Agriculture, giving a summary of the present condition and 

 prospects of the silk-producing industry in United States; caution against 

 extensive prosecution of this industry under present tariff laws. 



