ECONOMIC ZOOLOGY ENTOMOLOGY. 853 



Bees In Iowa, by W. S. Pangburn (pp. 50-60) ; Fifty Years of Bee Keeping in 

 Iowa, by E. Kretcbmer (pp. 60-62) ; Individual and Cooperative Methods of 

 Marlieting Honey, by W. Foster (pp. 62-67) ; Experience witb European Foul 

 Brood, by J. I. Wiltsie (pp. 67-70) and by L. W. Elmore (pp. 70, 71) ; Expe- 

 rience with American Foul Brood, by D. E. Lhommedieu (pp. 71, 72) ; Discus- 

 sion of Experiences with American Foul Brood, by J. W. Stine (pp. 73, 74) ; 

 Trip Through Quebec, by C. P. Dadant (pp. 74-76) ; Honey Plants of Iowa, by 

 L. H. Panmiel (pp. 76-S8) ; The Value of Bees in Horticulture, B. N. Gates 

 (pp. 89-93) : Bees as a Nuisance, J. D. Gustiu (pp. 94-98) ; Basswood Planting, 

 by G. B. MacDonald (pp. 98, 99) ; The Wild Bees of Iowa, by L. A. Kenoyer 

 (pp. 99-110) ; and A New Method of Using Split Sections, by L. D. Leonard 

 (pp. Ill, 112). 



Rocky Mountain spotted fever, L. D. Fricks (Pub. Health Rpts. [U. S.], 

 SO (1915), No. 3, pp. 148-165, figs. 3; abs. in Jour. Amer. Med. Assoc, 64 (1915), 

 No. 5, pp. 439. 440)- — ^This report deals in large part with the work of eradicat- 

 ing the Rocky Mountain spotted fever tick. Dennacentor veniistus (andersoni) , 

 during 1914. 



Experiments to test the destruction of ticks by two bands of sheep number- 

 ing about 1.500 were made \v the Bitter Root Valley. Montana, beginning about 

 the middle of April and terminating about the middle of July, when the sheep 

 were sheared, dipped, and returned to their owners. During the experiments 

 sheep of both bands were searched frequently for dead and live ticks, and 

 from the findings it was estimated that over 25,000 adult ticks were destroyed 

 by the 1.500 sheep during the season. It is believed that this experiment shows 

 conclusively that a high percentage of the total adult tick infestation can be 

 destroyed by sheep grazing in one season. 



Mites of the genus Tarsonemus causing' disease on Gramineae, G. H. Cor- 

 BETT (Ann. Sci. Bui. Roy. Agr. Col. Cirencester, No. 4-5 (1914). pp. 93-95, figs. 

 2). — In this brief review attention is called especially to a disease of oats cau.sed 

 by Tarsonemus spirifex. 



A revision of the cestode family Proteocephalidae, G. R. La Rue (III. Biol. 

 Monographs, J (1914). No. 1-2, pp. 350, jyls. i6").— The first part of this work 

 contains historical data, including synonymy and definitions of the genera con- 

 sidered ; a description of the technique em])loyed ; the anatomy and histology 

 of the Proteocephalidfe. including characters of diagnostic value; and a key 

 to the better-known genera and species of the family. Descriptions of pro- 

 teocephalid species follow, together with a comparative table of selected charac- 

 ters of Proteocephalus species; descriptions of proteocephalid species from 

 Amphibia and Reptilia ; comparative tables of selected characters of species of 

 Ophiotsenia and Crepidobothrium ; and descriptions of species of Monticellia. 

 This is followed by a discussion of the distribution, life history, and origin 

 of the Proteocephalidfe. 



The author concludes that the data presented by various workers show the 

 life history of the proteocephalids to be essentially as follows: "The eggs and 

 some of the ripe proglottids bearing eggs are voided by the host into the water, 

 where they are eaten by an invertebrate, perhaps a worm, an insect larva, or 

 a crustacean, or possibly the eater is a vertebrate, fish, snake, or an amphibian 

 of the same .species as the host or different. If the invertebrate or vertebrate 

 furnishes a suitable habitat for the development of the parasite, the six-hooked 

 embryo establishes itself and from it develops a plerocercoid about which the 

 host produces a cyst. If the intermediate host be eaten by a vertebrate which 

 furnishes proper habitat for the adult parasite, the plerocercoid when it is 

 released by the action of the digestive juices from its intermediate host and 

 94863°— No. 9—16 5 



