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as to what the climate may have been in those times .... To speak again of the climate, it might well be compared with the present clhnate of Florida and the lower part of Louisiana, with the vegetation fully as luxuriant as it is now in those parts and •vith the pahns :nore abundantly represented." Dr. Shufeldt's roemob-is thus avery interesting and hnportant contribution to the early history of bird life in North America. Although he has fortunately had a comparatively large amount of material for examination, the field is obviously not exhausted, so that much may be hoped from further exploration of eveu this same region.--J. A.. A..

ornithology

The Affinities of Hummingbirds and Swifts Ridgway on the Anatomy of Hummingbirds and Swifts R. W. Shufeldt Ridgway on the Anatomy of the Hummingbirds and Swifts. A Rejoinder R. W. Shufeldt Comparative Notes on the Swifts and Hummingbirds R. W. Shufeldt Shufeldt on the Anatomy of the Hummingbirds and Swifts Robert Ridgway Swifts and Hummingbirds Frederic A. Lucas