544 EXPERIMENT STATION RECOKD. [Vol.37 



It is pointed out, in substance, ttiat degree of color may be a measure of 

 ptiysiological activities in other fruits and vegetables as well as apples and 

 tomatoes. 



Arkansas Plant Act of 1917 and rules and regulations pursuant thereto 

 {State Plant Bd. Ark. Circ. 1 (1917), pp. 16).— The law here presented is en- 

 titled " an act to prevent the introduction into and the dissemination within 

 this State of insect pests and diseases injurious to plants and plant products 

 of this State, to create a State plant board, and to prescribe its powers and 

 duties." 



Colorado's amended horticultural inspection law (Off. State Ent. Colo. Circ. 

 22 (1917), pp. 8). — This comprises the text of the law as amended in 1917. 



Horticultural laws of IdaJio (Jerome, Idaho: Lincoln County Times, 1917, 

 pp. 16). — This pamphlet contains the text of the horticultural inspection, in- 

 secticide, and fungicide laws of Idaho. 



Suggestions for the control of injurious insects and plant diseases, G. M. 

 Bentley (Tennessee Sta. Bui. 117 (1917), pp. 111-123, figs. 2).— A revised edi- 

 tion of Bulletin 106 (B. S. R., 31, p. 635). 



Why, when, and how to spray, J. R. Coopeb (Nebraska Sta. Bui. 158 (1917), 

 pp. S-20, figs. IS).— A brief review of Research Bulletin 10 (E. S. R.. 87, p. 447). 



The preparation and use of lime-sulphur in orchard spraying, W. J. Morse 

 (Maine Sta. Doc. 523 (1916), pp. 11, figs. 2). — Directions are given for making 

 home cooked lime-sulphur concentrate, together with dilution tables and brief 

 suggestions on the u.se of lime-sulphur. 



Practical guide to the culture of fruit trees in Chile, especially in the 

 northern zone, A. Opazo G. (Cartilla Practica sobre Arboles Frutales que 

 Debemos Propagar en Chile i Espccialmcnte en la Zona Norte. Santiago de 

 Chile: Serv. Agron. Rejion. i Ensenanza Agr. Amhulante, 1916, pp. 116, figs. 

 S5). — Directions are given for the propagation, cultivation, care, and manage- 

 ment of fruit trees adaptetl for culture in Chile, especially in northern Chile. 



Rational fruit culture, H. C. Davidson (London: Garden Life Press [1917], 

 pp. [6]+127, figs. .}S). — A practical treatise, with special reference to condi- 

 tions in England. 



The pear in Ontario, F. M. Clement and O. J. Robb (Ontario Dept. Agr. 

 Bui. 249 (1917), pp. 28, figs. 24).— In this bulletin the authors give a summa- 

 rized account of the pear industry in Ontario, together with suggestions relative 

 to varieties, culture, harvesting, and marketing of pears. 



Bush fniits, F. W. Card (New York: The ilacmillan Co., 1917, rev. ed., pp. 

 Xin+409, pis. 16, figs. 58).— The present edition of this work (E. S. R., 10, 

 p. 756) has been revised to include recent information on the subject. 



Muscadine grape breeding, C. Dearing (Jour. Heredity, 8 (1917), No. 9, 

 pp. 409-424. figs. 9). — A short general account of the work being conducted by 

 the U. S. Department of Agriculture with muscadine grapes in the South, 

 Including a review of some of the results secured from intercrossing and 

 hybridizing the.se grapes with other species. 



Vinifera grapes in New York. R. D. Anthony (.Vejr York State Sta. Bui. 

 4S2 (1917), pp. 81-105. pis. 6).— This bulletin gives the results of experiments 

 conducted at the station for several years in an attempt to cultivate the 

 European grape (Vitis vinifera). 



Since 1911 the station has had under trial more than 70 varieties of 

 V. vinifera which were grafted on a miscellaneous collection of station seed- 

 lings ranging from 6 to 10 years old. Most of the plants fruited in 1913. By 

 ^ving the vines winter protection and the usual grape sprays they have been 

 kept in a healthy condition. Most of the Vinifera varieties have originated in 

 regions with a longer season and a mucli warmer climate than that of New 



