. Guide leaflet. ock Hawk on Palisades Hackeneack meadows, New J< Wild Turkey, mountains of West Virginia Florida Great Blue Heron and Anhinga,near .St. Florida Sandhill Crane, Kissimmee Prairies,Florida Brown Pelican, Pelican [aland, Honda American Egret, coast of South Carolina Turkey Buzzard, bland, Po-tomac River, near Washington, D. C. i HCBOn, Arizona California Condor, Iuu Canon, southern California Brandt- Cormorant, CaliforniaSan Joaquin Valley, California 16. Arctic Beabirds, Diomede Islands, Bering Strait 17 Flamingoes, Andres bland, Bahama*is. Booby a


. Guide leaflet. ock Hawk on Palisades Hackeneack meadows, New J< Wild Turkey, mountains of West Virginia Florida Great Blue Heron and Anhinga,near .St. Florida Sandhill Crane, Kissimmee Prairies,Florida Brown Pelican, Pelican [aland, Honda American Egret, coast of South Carolina Turkey Buzzard, bland, Po-tomac River, near Washington, D. C. i HCBOn, Arizona California Condor, Iuu Canon, southern California Brandt- Cormorant, CaliforniaSan Joaquin Valley, California 16. Arctic Beabirds, Diomede Islands, Bering Strait 17 Flamingoes, Andres bland, Bahama*is. Booby and Man-o-war Bird, Cay Verde, Bahamas ithbert Rookery, southern Florida 20. Whistling Swan, Southampton bland, Sudson Bay 21. Whooping Crane, Heron Lake, Mini ilden Eagle, Bates Hole, ^ yoming 23 Klamath Laki Jifornis 24 Arctic-Alpine Bird-Life, Ptarmigan Lake, iv G . Medicine How. \N yoming26 Prairie Hen. Halsey, Nebi27-28 Wild Goose and Grebes, (Irani I Saskatchewan 29. Loon, Lake Umb:«). Bird Hock, Gulf of 81. o3 •a S3 ■c o dk - S «° ^ 2 d +=> > v, o3 S pd > ^ o >> o3 w ^2 O r3 DOPiO N 2 c UJ 3 o 2 >> 5 -Q 12 oc3 1. THE ORIZABA GROUP A Study of the Influence of Altitude on theDistribution of Life FROM the dense tropical forests, at the base of Mount Orizaba inVera Cruz, Mexico, one may look upward toward the equallygrand forests of pines and spruces which, 10,000 feet higher, coverthe sides of the mountain. In the luxuriant vegetation are Parrots, Toucans, Trogons, Mot-mots, and many other tropical birds; and from their home one may seethe zone where Crossbills, Evening Grosbeaks, Juncos, Brown (reepers,and other boreal birds are nesting. Owing to differences in are the equivalent of differences in latitude, the three great LifeZones which go to make up the faunal regions of North America arethus represented in this one group, which may be said to epitomize allthe other groups contained in this hall. The studies for this view of Mou


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901