June, '121 REVIEWS 299 



without a legend to any one excepting possibly the artist and the author 

 is of little service, yet such occasionally appears. The selection of 

 method must depend in large measure on the subject, the ability of 

 the artist, the paper to be used and local resources. A good line or 

 wash drawing is better than a poor colored plate. American illus- 

 trations of recent years average much better than those of earlier days, 

 though there is still room for improvement. 



Revie 



ws 



J. R. Inda. La conchuela del frijol {Epilachna corrupta Muls.), 

 Circl. 33, Estacion Agricola C^jntral, 1910. 



This circular deals with the most important insect enemy of beans in Mexico. 

 On account of the extensive use of beans among the Mexicans the damage by this 

 insect is of great importance. The species is said to occur in ten of the northern 

 states of Mexico and undoubtedly is to be found in other districts in the republic. 

 In addition to geographical distribution the circular discusses injury and methods 

 of control. Principal stress is placed upon hand picking of the eggs and larvae and 

 the use of copper sulphate or kerosene emulsion. 



G. Gandara. Informe de la comision desempefiada per el Senor 

 G. Gandara en Jamiltepec, Oaxaca, para combatir una plaga de gusanos 

 en el algodon. Bull. 43, Estacion Agricola Central, 1910. 



This bulletin deals with a special trip undertaken by Professor Gandara to inves- 

 tigate damage by the cotton worm {Alabama argillacea Hbn.) in a locality in the 

 state of Oaxaca about 200 miles south of Mexico Citj*. The publication is of special 

 interest because it gives the first information regarding the seasonal historj^ of the 

 cotton worm in any region south of the United States. In the portion of the state 

 of Oaxaca where the observations were made the cotton is usually planted at the 

 beginning of September. Generally damage by the worpi is not noticed until October 

 or November. In 1909, however, the insects appeared in September, although it 

 was not until the 15th of November that the outbreak assun^ed serious proportions. 

 With the use of Paris Green Professor Gandara checked the damage almost 

 immediately. 



A. ]Madariaga. Estudio de una plaga de parasites en las gallinas 

 de la estacion agricola central. Circl. 2(3, Estacion Agricola Central, 

 1910* 



This circular deals with an outbreak of fowl parasites at the Central Experiment 

 Station near Mexico City. The principal species concerned was Dermanyssus gallinoe. 

 Two Mallophagids, Goniodes hologaster and Menopon hiseratum were found in much 

 smaller numbers. A number of experiments were performed with kerosene emul- 

 sion, turpentine, pyrethrum and other substances without very satisfactory results. 

 It was found, however, that a kerosene emulsion with turpentine added was much 

 more effective than anything tried. This mixture is recommended for use against 

 the mites. For the ^Mallophagids the fumigation of the fowls vfMh. sulphur in special 

 cages through the tops of wliich the heads are allowed to protrude is advised. 



