560 EXPERIMENT STATION RECORD. 



attacks of the caterpillars of t^pilosoma lupricipcda. This insect feeds upon the 

 smaller stems cansinji the parls above the injury to turn brown and wilt. 



Nurseries and nursery inspection, T. B. Symons, J. B. S. Norton, and 

 C P. Close {MonjJaiid tita. Bid. ISO, pp. 79-128). — A general account in which 

 the authors consider selection and care of the nursery, soil and cultural methods, 

 isolation from scale and yellows, impoi'tance of selecting buds and scions, grow- 

 ing low-headed trees, control of injurious insect and plant diseases with 

 formulas for insecticides and fungicides, marketing of nursery stock, and the 

 A-arious State laws regarding inspection. Among the insects briefly discussed 

 are the San Jose scale, woolly aphis, black peach aphis, green aphis of the 

 apple, oyster-shell scale, scurfy scale, and caterpillars. Plant diseases are 

 considered under the headings of leaf diseases, diseases of the wood, root 

 troubles, and nursery sanitation. 



The insect pest law, G. W. Hkrrick {Mississippi Sta. Circ. June. 1908. 

 pp. 7, fig. 1). — The inspection law enacted by the legislature in 190S is here 

 given and explained. This law empowers the entomologist of the experiment 

 station to promulgate such rules and regulations in regard to the inspection, 

 transportation, and sale of nursery stock as he may deem necessary and also 

 to make and enforce rules and regulations regarding the boll weevil. The 

 rules and regulations governing the transportation of cotton seed in the State 

 are given. 



Comparative study of the value of various insecticides for the destruction 

 of catei-pillars, A. Truelle (Jour. Agr. Prat., n. scr., 15 (1908), A^o. 18, pp. 

 565, 5U0). — With regard to the effectiveness and intensity of action of various 

 insecticides used without emulsion, tobacco powder was found to stand at the 

 head of the list, followed by pyrethrum, Paris green, and various other insecti- 

 cides, while hellebore was least effective. In emulsion, kerosene proved to be 

 most effective and hellebore least so. 



An apparatus for the preparation of kerosene emulsion, L. P. de Bussy 

 (Meded. Dcli-Proefstat. Medan, 2 {1908), No. 3, pp. 237-240).— Kerosene emul- 

 sion has recently been quite widely used in Deli as a contact insecticide for 

 the control of thrips, plant lice, Capsidne, and other pests. For use on sugar 

 cane the author recommends an emulsion containing 1 part hard soap, 10 parts 

 water, and 20 parts kerosene, the stock mixture to be diluted with 15 parts of 

 water before using. 



The etiology of so-called foul brood of bees, A. Maassen {Arh. K. Biol. 

 Anst. Land u. Forsiw., 6 {1908), No. 1, pp. 53-70, pis. 2). — In the opinion of 

 the author foul brood is not a simple disease but should be considered as 

 an affection of the alimentary tract of bee larvje due to 3 micx'o-organisms 

 {Bacillus alvci, B. brandenhurgicnsis, and Streptococcus apis). B. alvei and 

 S. apis occur in both forms of foul brood, while B. hrandenburgiensis is found 

 only in the malignant form of foul brood in which the cells remain covered. 

 Detailed notes are given on the growth and behavior of these organisms on 

 various nutrient media. The author studied B. larvxc obtained from America 

 and came to the conclusion that it is identical with B. hrandenburgiensis. 



FOODS— HUMAN NUTRITION. 



A preliminary study of the effects of cold storage on eggs, quail, and 

 chickens, H. W. Wiley et al. ( U. S. Dept. Agr., Bur. Chem. Bui. 115, pp. 117, 

 pis. 13). — In this extended study of cold storage and its effects information 

 gathered from cold storage warehousemen is summarized, the results of in- 

 vestigations on the effects of cold storage on eggs, quail, and chickens are 

 reported, and data regarding legislative enactments on the subject are given. 



