
expects to enlarge still further the number of enemies of the Australian 
cactus plant by securing valuable parasites round in Mexico by Messrs. 
Hamlin and Mortensen in 1923. Mr. Hitchcock now estimates the area infested 
by the prickly-pear in Eastern Avstraiia at 60,000,000 acres, and its annual 
increase as more than 1,000,000 acres. 
On March 22, J. C. Hamlin conferred with D, K. Grady, Secretary 
of the Dried Fruit Association of California, relative to the trend of 
cooperative investigations affecting dried-fruit insects. 
The Dried-Fruit Insect Laboratory was’ recently visited by ¥. B. Camp, 
of the Cotton Experiment Station at Shafter, Calif. 
The aid of the Dried-Fruit Insect Laboratory was recently enlisted by 
the Liberty Orchards Co. of Cashmere, Wash., to fight the depredations of 
the Indian-meal moth on the company's new apple-walnut confection. Experiments 
are being undertaken on the adaptability of carbon dis here plus carbon 
dioxide, in vacuum, to meet the situation. 
-Mabel Colcord, Librarian 
Nsw BOOKS 
Berland, Juucien. 
Hymenoptéres vespiformes... Paris, P. Lechevalier, 1925. 364 pp., 
illus. (Faune de France 10.) 
Blunck, Hans. . 
Syllabus der Insektenbiologie bearbei tes von zahlreichen F hi ie 
moorse. vou Drs he Biumnek, Berlin, Verlag von Geb ruder Borntraege 
19c5. Lig. 1, Coleopteren. 
Chandler, A.C. 
Animal parasites and human whee io. Oy breve en eee 
and Sons, 1926. 573 pp., illus Sources of information, pp. 529- 
53+. . 
Chavigny, Paul. 
Les animaux parasites de LYhomme et de l'habitation - ce que tout 
le monde doit en savoir. Paris, Librairie Cctave Doin, 192k. 
MOT Op. ww cline 
Graze, C. FP. 
A manual of the parasitic protozoa of man. Philadelphia and London, 
J. B. Lippincott & Company, 1925. 569 pp., illus., pl. Biblio- 
graphy at ends of chapters. 
De Kruif, Paul. 
Microbe Hunters. WN.Y., Harcourt, Brace & Company, c. 1926. 
9. Divas Aide ayend « ; 
De Long, D. M. 
- A monographic study of the genus Deltocephalus. Columbus, Ohio, 
Jan. 16, 1926. 129 pp., 30 pls. [Ohio St. Univ. Studies, vol. 2, 
No. 13. (Contributions in Zoology and Entomology ilo. 3.)] 
