*1151D. Silver-Fox Tarming-. 15(Z^ 



*ll65D. Report on Bird Censuses in the United States, I916 to I920. 5?^ 



*1196d. Food and Economic Relations of ITorth American Gretes. ^(p 



*1227D. Damage to Rpjige Grasses "by the Zuni Prairie Dog. 10(/^ 



■^laUgD- Food Habits of Some Winter Sird Visitants. 10^ 



*1268D. Returns from Banded Birds, 1920 to 1923. 10^ 



*13U6d. Status of the Pronghorned . Antelope, I922-I92U. l^<f: 



*1350D. Blue-Fox Farming in Alaska. 10;^ 



*1359D' Food of American Phalaropes, Avocets, and Stilts. 10.'5 



*1395D. Bats in Relation to Production of Guano" and Destruction of Insects. 5?^ 



*lU23D. Progress of Reindeer Grazing Investigntions in Alaska. 1^'h 



*21T. Beaver Zabits and Experiments in Beaver Culture. 20,2^ 



*2Ut. The I.iagpie in Relation to Agriculture. 10(/ 



=''26t. Our Migrant Shorehirds in Southern South America, ^i 



*32T. Ret^arns from Banded Birds, 1923 to I926. 20.ij 



*6lT. Tk'ild Birds Introduced or Transplanted in North America. lOrt 



*13^T. Red-Squill Powders as Raticides. 10^ 



*lU5T- Life History and Hahits of Grasshopper Mice, Genus Onychomys. 10^ 



*lU7T. Hahits and Economic Importance of Alligators. lOd; 



*221T. Wild-Duck Foods of North Dakota Lakes. 15^ 



*22Ut. Hahits and Economic Status of the Pocket Gophers. lOti \ 



*23ST. The Pharmacology of Thallium and Its Use in Rodent Control. 5^ 



*UllT. Western Duck Sickness: a Form of Botulism. 10<?J 



North Ameri can Faunas : 



*27. Biological Investigation of the Athaha.ska-MacKenzie Region. $1.25 



*3^- Revision of Spiny Pocket Mice. 10(/ 



*U3. Rice Rats of North America. 20^ 



*U5. Biological Survey of Alabama: 1, Physiography and Life Zones; 



2, Mammals. 2^(f: 

 ^Uy. Revision of American Fikas. 15^!^ 

 *l4S. Voles of Genus Phenacorays: 1, Revision of Genus Phenacorays: 2, Life 



History of Red Tree Mouse. 2.0(1; 

 *U9- Biological Survey of North Dakota: 1, Physiography and Life Zones; 



2, Mpjumals. 60(2^ 

 *50' Revision of American Lemming Mice. lOd: 

 *51« Taxohomic Review of American Long- Tailed Shrews (Genera Sorex and 



Microsorex). 50^ 

 *52. Revision of American Chipmuni';s (Genera Tamias and Eutojuias). 35(^ 

 *53' M-^Tiraals of New Mexico. SloOO 



Circulars — incl ud ing Biol og ical Su rvey (BSC) Series : 

 *6lBSC. Hawks and Owls from the Standpoint of the Farmer, '^(f: 



*S2C. Improved Reindeer Handling. 5;,-^ (Superseded by 207M.) 



^960. Game Birds Suitable for Naturalizing in the United States. 10^ 



*107C. The Noi-mal Breeding Season and Gestation Period of Martens, '^(f; 



*11SC. Calculating Waterfowl Abundance on the Basis of Banding Returns. 5^ 



*339C. Program of Waterfowl Restoration. 5-^ 



*3^2C. The Waterfowl Flyways of North America.- 5-^ 



3 



