Technical Bulletins — Continued. ■ ' 



*21T. Beaver Ilaoits and Experiments in Beaver Culture. 20j^ 



*24T. The Magpie in Relation to Agriculture. lOc^ 



*36T. Our Migrant Shoretirds in Southern ■ South America. 5^- 



*32T. Returns from Banded Birds, 1923 to 1925. 20/ 



*134T. Red-Sq.uill Powders as Raticides. . 10?^ 



*145T. Life History and Hatiits .of Grasshopper Mice, Genus Onychomys. 10^ 



*224T. Hatits and Economic Status of the Pocket Gophsrs. lOjiJ 



*238T. Tiie pharmacology^ of .Thallium and Its Use in Rodent Control. 5i^ 



*411T. Western Duck Sickness: a Eorm of Botulism. 10/ 



=^457T. The Crested Myna, or Chinese Starling, in the Pacific l^orthwest . 5/ 



Jorth A meric an Ea\:inas: 



*47. Revision of American Pikas. IS^-' ■ 



*48 . Yoles of Genus Phenacomys: 1, Revision of Genus Phenacomys: 2, Life 



History of Red Tree Mouse. 20 



* 



*50. Revision of A^ierican Lemming Mice. lOf 



*51. Taxonomic Review of American Long- Tailed Shrews (Genera Sorex and 

 Microsorex) . 50;^ 



52. Revision of American Chipmurilcs (Genera Tamias and Eutamias). 35jZ^ 



53. Mammals of How Mexico. $1.00. 



*54. Alaska-Yulcon Cari"bou. 20/ . . ' . 



*55. Mamraals and Life Zones of Oregon. 75./ ' ■ _ ' ' 



Circulars — in cluding 3 iolo.:?i cal Survey ( BSC) Series : 



*613SC. Hawks and Owls from the Standpoint of the Earmer. 5(^ 



*82C. Improved Reindeer Handling. 5(p (Superseded hy 207M.) ' , 



*107C. The ITormal Breeding Season and Gestation Period of Martens. 5/ 



*339C. Program of Y^aterfowl Restoration. 5^ 



*342C. The Waterfowl Elyways of ITorth America. 5/ 



*348C. Quail-Eood Plants of the Southeastern States. 5/ 



*362C. Pood Habits of the Coyote in Jpxkson Hole, Wyo . 5/ 



*363C. The Migration of North American Birds. Id/ 



*370C. Pood Hahits of Comjnon Hawks. 5'/ 



*381C. Rodents and Moles as pests in Bulh plantings. 5/ 



*409C. Effect of Thallium on Plant Grovrt;h. 5/ 



*410C. Results from Breeding Rabhits that are Suckling Young. 5/ 



*412C. Groups of Pla.nts Valuable for Wildlife Utilization and Erosion Control. 5^ 



*423C. The House Rat. 5/ 



*428C. Plight Speed of Birds. 5^ 



*433C. Crow-Waterfowl Relationships: , iased on Preliminary Studies on 



Canadian Breeding Grounds. 10/ 



*460C. Silver Pox Pelt Prices as Affected by Time of pelting, Sex, and Age. 10^ 



Miscellaneous publications : 



*88M. The United States Department of A-gri culture: Its Structure and 

 Functions (with chapter on tne Biological Survey). 15/ 

 *115M. Information for the Guidance of Field Men and Cooperators of the 

 Bureau of Biological Survey Engaged in the Control of Injurious 

 Rodents and predatory Animals. 5/ 

 *127M. Peafowl and Their Care. 5/ 



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