750 EXPERIMENT STATION EECORD. 



76). — The results of a study of the parasitic aud nouparasitic forms of 

 nematodes are given, special attention being paid to the morpliology and biology 

 of the different species. Nine genera are described, of which the parasitic 

 forms are 9 species of Tylenchus and 2 of Heterodei'a. 



An extensive bibliography completes the publication. 



Experiments with insecticides and fungicides {Jour. Cooper Research Lab., 

 1909, No. 1, pp. 11-1'h pJs- '-)• — A brief outline is given of experiments being 

 carried on with insecticides and fungicides in which practically all the materials 

 reputed to have fungicidal or insecticidal value are being tested. 



Copper as a fungicide, W. H. Barlow (Jour. Cooper Research Lab., 1909, No. 

 1, pp. 3-'f-50). — A summary is given of investigations relating to the use of 

 copper as a fungicide, and the chemistry of Bordeaux mixture and its action on 

 fungi, leaves, and upon the assimilation of the plant are discussed. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



A biological investigation of the Athabaska-Mackenzie region, E. A. 

 Preble (V. S. Dept. Agr., Bur. Biol. t:>urvey, Xorth American Fauna No. 27, 

 pp. 51. 'i, pis. 25, figs. 16). — This worlv is based mainly upon two expeditions con- 

 ducted by the author, the first in 1001. the second in 1003-4. Attention is first 

 given to the itinerary (pp. 11-lG) ; physical geography and climatology of the 

 Mackenzie Basin (pp. lG-40) ; and life zones of the Athabaska-M.'ickenzie region 

 (pp. 40-53). The area lies within the Boreal Region and comprises parts of each 

 of its three subdivisions. Previous explorations and collections (pp. 54-85) are 

 then discussed, followed by a general account of the routes traversed by the 

 Biological Survey parties (pp. 85-125), 



The mammals are considered at length, all the species known to occur in the 

 region being listed (pp. 12G-251). "Owing to the uniformity of climatic and 

 physiographic conditions in the north many species range over large areas 

 v.ithout differentiation into i-aces; consequently few new forms have been de- 

 tected. It has been necessary to describe only one, a northern form of Evotomys 

 gapperi; in the case of one or two other forms, old names have been revived." 



All the species of birds that have been authoritatively repdrted from the 

 regions are listed (pp. 251-500). " In the spring, when its rivers and swamps 

 are freed from the grasp of the long Arctic winter, the region becomes the resort 

 of millions of birds which hasten to breed within its borders. These include 

 representatives, and in some cases the bulk of the individuals, of most of the 

 migratory game birds, which are of great economic importance in the United 

 States, where many of them winter."' 



But few reptiles and batrachians live in the region, only 5 sjiecies being 

 recorded (pp. 500-502). Twenty species of fresh-water and anadromous fishes 

 are listed (pp. 502-515) from the Mackenzie Valley. The trees and shrubs of 

 the region are considered at some length (pp. 515-534) and a list of the prin- 

 cipal books and articles relating to the birds and mammals of the region is 

 appended. 



Regulation for the protection of deer in Alaska {TJ. 8. Dept. Agr.. Bur. Biol. 

 Survey Circ. 6S, p. 1). — Regulations additional to those previously noted 

 (E. S. R., 20, p. 455) are here promulgated. 



Fur farming, A. R. Harding (Columbus, Ohio, 1909, pp. 1S6. pi. 1, figs. 25). — 

 A book of information about fur-bearing animals, inclosures, habits, care, etc. 



The mammals of Indiana, W. L. Hahn (Ind. Dept. Geol. and Nat. Resources 

 Ann. Rpt., 33 (1908), pp. 417~65Ji, figs. 4i).— A descriptive catalogue of the 

 mammals occurring in Indiana in recent times. 



