120 JOUENAL OF THE KOYAL HORTICULTURAL SOCIETY. 



tribution of the species of Coelogyne is described, and also the date of 

 their introduction into Europe. — S. E. W. 



Coffee-Bean Weevil, New Breeding- Records of the. By 



E. S. Tucker (U.S.A. Dep. Agr., Bur. Entom., Bull. 64, pt. vii. ; Aug. 

 1909; 1 plate, 1 fig.). — While making field observations upon the 

 cotton-boll weevil during 1908 the writer's attention was dr'awn to the 

 work of strange weevils occurring in dried cornstalks in fields adjacent 

 to cotton. The specimens were identified as the coffee-bean weevil 

 [Araecerus fasciculatus De Geer), and the selection of cornstalks for 

 breeding purposes places the species on record as a new enemy of corn- 

 fields. Previously published records show it to be a common insect in 

 warm climates, and that it has no particular food preference. — V. G. J. 



Colorado Ant, Notes on a. By H. 0. Marsh (U.S.A. Dep. 

 Agr., Bur. Entom,., Bull. 64, pt. ix. ; Oct. 1910). — A medium-sized ant 

 (Formica cinereorufiharhis Forel) is one of the most common species 

 occurring in the vicinity of Eocky Ford, Colorado. 



As the ants are usually found on aphis-infested cantaloup vines, 

 many growers are of the opinion that they are largely responsible for 

 the spread of the aphides from one vine to another. 



Watering the nests with a solution of 98 per cent, cyanide of 

 potassium (half an ounce to a gallon of water) repeated four times 

 during August and September was entirely successful. — V. G. J. 



Colour Charts. E. A. Bunyard (Gard. Mag. No. 2984, p. 15, 

 Jan. 7, 1911). — The advantages of " Code des Couleurs," by Kluig- 

 bsieck and Valette, are considered greater than " Le Eepertoire des 

 Couleurs." In the " Code " the colours are arranged according to the 

 spectrum, a standard tint being taken; the same colour is shown with 

 definite amounts of black, yellow, or other pigment added or 

 eliminated. In this way some 720 different colours are shown. The 

 following advant'.ages of the " Code " over the " Eepertoire " are 

 claimed : — 



(1) A small book to go in the pocket, 8vo. ; (2) colours found 

 instantly ; (3) colours are fixed, not loose sheets ; (4) colours are a 

 nearer approach to natural pigments ; (5) colours not named, but 

 referred to by numbers only. 



It is hoped that in any revision the good points of both should as far 

 as possible be combined. — E. B. 



Corn Clubs, Boys'. S. A. Knapp and 0. B. Martin (U.S.A. 

 Dep. Agr., Bur. PI. Ind., A " 74, p. 7; March 1911; 5 illustrations, 

 1 plate). — This pamphlet deals with one of the methods used to stimu- 

 late interest in agriculture. The boys who are members of the club 

 agree to plant one acre with maize. The American Department of 

 Agriculture sends hints from time to time on the management of these 

 plots. Valuable prizes are awarded to those obtaining the best results. 



W. W. 



