6'52 EXPERIMENT STATION RECOED. 



has been observed that is said to be very characteristic of the disease when it 

 occurs, but it is usually observed only on trees that have had the disease for 

 more than one year. 



In 1910 the author made an attempt to select out the infected trees in a lot 

 of 10,000 3-year-old pine seedlings, and the remainder were planted in the open 

 field in a locality where Ribes was absent for a considerable distance. An 

 examination the next summer showed a considerable number of swellings of 

 the bark, indicating the impossibility of the removal of all infected trees by a 

 single insjiection. 



The author reports having discovered the disease in 1911 in New Jersey and 

 Virginia. The teleutospore stage of the fungus was found affecting the stipules 

 and bracts of leaves of Ribes sp. in the greenhouse, and it is believed that this 

 explains the anomalous appearance of this fungus on Ribes at Geneva, N. Y. 

 (E. S. R., IS, p. 747). 



Experiments in the greenhouse with inoculations on Ribes showed that the 

 teleutospore stage develops only after the cool weather of autumn sets in. Suc^ 

 cessful inoculations have been made in the greenhouse on young white pine trees 

 with teleutospores secured by inoculation on R. amcricanum of 0ecidiosix>res 

 borne upon imported trees of Pinus strohus. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Textbook of zoology, J. E. \. Boas {Lehrbuch der Zoologic. Jena, 1911, 6. 

 rev. and enl. ed., pp. X-\-690, figs. 618). — This is the sixth revised and enlarged 

 edition of a work first issued in 1S90. 



A zoological dictionary, etlited by H. E. Ziegler (Zoologisckes Worterbvch. 

 Jena, 1911, 2. rev. and enl. ed., pt. 1, pp. XXI+208, figs. 788).— The second 

 revised and enlarged edition of a work first issued in 1907-1910. This first part 

 begins with the word Aal and ends with Elasiiwden. 



Mammals of the West Indies, G. M. Allen {BuJ. Mus. Compar. ZooL, 5't 

 (1911), No. 6, pp. 115-26S). — This is a list of the mammals known to occur in 

 the West Indies with a summary of their recorded distribution and its zoogeo- 

 graphical bearing, based on a study of the collection of the Museum of Com- 

 parative Zoology and collections made by the author on the island of Grenada. 

 Three new island races are described. 



A bibliography, which includes most of the important papers dealing with 

 mammals of the West Indies, is appended. 



Report on condition of elk in Jackson Hole, Wyoming, in 1911, E. A. 

 Preble (JJ. 8. Dcpt. Agr., Bur. Biol. Survey Bui. JjO, pp. 23, pis. 7). — Jackson 

 Hole, in the Snake River Valley in northwestern Wyoming, has long been the 

 principal winter home of large numbers of elk, or wapiti {Cervus canadensis) , 

 but increased settlement has resulted in a shortage of the forage available 

 and large numbers of elk have died from starvation during the past 3 winters. 

 This bulletin reports 3 months' preliminary investigations as to the feasibility 

 of feeding, protecting, and removing the elk in the vicinity, under a special 

 appropriation (E. S. R., 24, p. 405). 



The author presents a general description of the region, discusses the value 

 of elk to the community, the feeding of elk in winter, and their life history, 

 enemies, illegal killing, transportation, and winter refuge. The herd is esti- 

 mated to number about 20,000. It is pointed out that the problem of trans- 

 portation is a difficult one, because the Teton Range, 2,000 ft. higher than the 

 Snake River Valley, must be crossed on the way to the railroad. A dozen of 

 the more vigorous animals of various ages were, however, successfully trans- 



