00610nam a2200157Ia 4500001001100000005001700011008004100028050002900069245006900098260005300167300004400220500009600264502004800360504003100408650001300439000000639220251012174451.0  770518s1951    cauab         000 0 eng00aQL1b.C15 vol. 52, no. 110aDistribution and variation of the brown towheescby John Davis.   aBerkeleybUniversity of California Pressc1951.   aix, 119 p.bill., maps, tablesc17 cm.:  a"A contribution from the Museum of Vertebrate Zoèology of the University of California."   aBased on thesis - University of California.  aBibliography: p. 112-119.  0aTowhees.