676 EXPERIMENT STATION RECORD. 



the stage in which the insect passes the winter, the features by which it may be 

 recognized, and the treatment to be applied. 



The grouse and wild turkeys of the United States, and their economic 

 value, S. 1). Judd ( U. S. Dept. Agr. Bur. Biol. Survey Bid. 24, pp. 55, pis. 2). — An 

 account is given of the feeding habits of prairie hen, heath hen, lesser prairie hen, 

 sharp-tailed grouse, sage grouse, ruffed grouse, Franklin grouse, dusky grouse, willow 

 ptarmigan, white-tailed ptarmigan, and wild turkey. 



In connection with prairie hen and ruffed grouse, an account is also presented of 

 their preservation and propagation. The 12 species of grouse which occur within 

 the limits of the United States including Alaska may be arranged in three groups 

 according as they occupy the open plains, forested regions, or the mountain summits. 

 Attention is called to the diminution in numbers in most of these important game 

 birds, including wild turkey, and to the desirability of having experiments instituted 

 to determine the feasibility of propagating them in a semidomesticated condition. 



Detailed notes are given on the feeding habits of ail species concerned, as based on 

 the examination of stomach contents. 



A new method of destroying" field mice, E. Schribaux (Jour. Ayr. Prat.,n. ser., 

 9 (1905), No. 22, pp. 708-710). — A comparison was made to determine the effective- 

 ness and relative cost of baryta bread and Loeffler's virus in destroying field mice. 



As a result of these experiments it was found that baryta was not only very 

 efficacious in destroying mice but was easy of application and comparatively inex- 

 pensive. The treatment of 1 hectare of infested ground with baryta cost about one- 

 half as much as treatment with Loeffler's virus by the ordinary method and about 

 the same as the modified method of applying the virus. The virus, however, in the 

 author's opinion suffers from the disadvantage of being uncertain in its effects. 



Injurious insects and other animals observed in Ireland during- the year 

 1904, G. H. Carpenter (Econ. Proc. Roy. Dublin Soc, 1 (1905), No. 6, XIV, pp. 281- 

 305, pis. 4)- — Tipula oleracea continues to cause damage to cereals by attacking the 

 roots. In some localities whole fields of oats were destroyed by the larvae of this 

 pest. 



In controlling the insect it is desirable that pastures be closely grazed before plow- 

 ing, and that potatoes or a similar crop be grown on the soil before oats and other 

 cereals. Biological and economic notes are also given on the frit fly, Chlorops tseniopus 

 on barley, millipedes, Tylenchus devastatrix on oats, cabbage-root maggot, Pegomyia 

 betse, pea weevil, Lipura ambulans and Lohmannia insignis on kidney beans, Acidia 

 heraclei on celery, pear midge, apple-plant louse, black-currant mite, Rhabdophaga 

 heterobia on willows, etc. 



The study of insects, M. T. Cook (Estac. Cent. Agron. Cuba Circ. 14, pp. 7, ph. 

 3). — A brief account is given of the structure and classification of insects for the use 

 of farmers and fruit growers. 



Insect notes [Agr. News [Barbados'], 4 (1905), Nos. 90, p. 298; 91, p. 314; 92, p. 

 330, figs. 4). — Citrus plants are said to have been attacked by Epicierus ravidus. Brief 

 notes are given on beneficial insects in cotton fields, cane fly in Barbados, hair-follicle 

 mite of pigs, corn earworm, knapsack sprayer, and spraying cattle for ticks. 



Entomological notes, J. Kotinsky (Hawaii. Forester and Agr., 2 (1905) , No. 9, pp. 

 266-269). — In this article the author discusses mango weevil, Asiatic ladybird, 

 towoomba ladybird, and San Jose scale. 



The Asiatic ladybird has been introduced into Hawaii, but the importance of this 

 beetle in the destruction of scale insects in the Territory has not been determined. 

 Rhizobius towoomb was observed feeding upon various scale insects. The present status 

 of San Jose scale was also briefly outlined. 



Report of the nursery inspector, A. E. Stene (Ann. Rpt. Bd. Agr. R. I., 20 

 (1904), pp. 24-43, pis. 2).— A copy is given of the nursery inspection law of Rhode 

 Island with a commentary on the purpose and operation of the law. Brief notes are 



