2 Free Artworks of Bulletin Of The United States Department Of Agriculture (1907)

icterus galbula (illustrations)icterus spurius (illustrations)robert bruce horsfall
Bulletin (1904-1907) (19798776834), Robert Bruce Horsfall
icterus galbula (illustrations)icterus spurius (illustrations)
The relation of birds to the cotton boll weevil (1907) (14565270467), Robert Bruce Horsfall, 1907
icterus galbula (illustrations)icterus spurius (illustrations)
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