Descriptions of Three New Birds from the Belgian Congo Bulletin of the AMNH , Vol. XXXIV, Art. XVI, pp. 509-513, Oct. 20th, 1915

PART IV.--Orthogenetic and Other Variations in Muskoxen, with a

Chapter 3824 wordsPublic domain

Systematic Review of the Muskox Group, Recent and Extinct. By J. A. Allen. Pp. 103-226, pll. xi-xviii, text figures 1-45, 1913. Price $2.50.