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- The Geologic Story of Glacier National ParkJames L. Dyson
- Island Trail at Walnut Canyon Walnut Canyon National MonumentSouthwestern Monuments Association
- Rainbolt, the Ranger; or, The Aerial Demon of the MountainOll Coomes
- The Golden Book of SpringfieldVachel Lindsay
- Zion National Park, Utah (1951)United States. National Park Service
- Grand Teton National Park, Wyoming (1952)United States. National Park Service
- Bird BiographiesAlice Eliza Ball
- Bryce Canyon National Park, Utah (1952)United States. National Park Service
- How to Collect and Preserve InsectsHerbert H. Ross
- Wild Animals of the Rockies With a List of Mammals found in Rocky Mountain National ParkJames P. Gilligan
- Cassell's Natural History, Vol. 2 (of 6)P. Martin Duncan
- Ferns of Hawaii National ParkDouglass H. Hubbard
- The Kingdom of ManE. Ray Lankester
- The Green Thumb, Nov.-Dec. 1959, Vol. 16, No. 10Colorado Forestry and Horticultural Association
- The Shetland PonyCharles Douglas
- The Open Window: Tales of the MonthsMabel Osgood Wright
- Poems of Natureهنري ديفيد ثورو
- La mandragoreJean Lorrain
- The Living Animals of the World, Volume 1 (of 2) A Popular Natural HistoryC. J. Cornish
- Earthquakes and other earth movementsJohn Milne
- Hampshire DaysW. H. Hudson
- The Moon Princess: A Fairy TaleEdith Ogden Harrison
- The Book of HerbsRosalind Northcote
- Glimpses of America A Pictorial and Descriptive History of Our Country's Scenic MarvelsJames W. Buel
- Giphantia Or a View of What Has Passed, What Is Now Passing, and, During the Present Century, What Will Pass, in the World.Charles-François Tiphaigne de La Roche
- The Lunarian Professor and His Remarkable Revelations Concerning the Earth, the Moon and Mars Together with An Account of the Cruise of the James B. Alexander
- Texas GemstonesElbert A. King
- A Memoir of Thomas Bewick Written by himselfThomas Bewick
- Star PeopleKatharine Fay Dewey
- The Boy Travellers in The Russian Empire Adventures of Two Youths in a Journey in European and Asiatic Russia, with Accounts of a Tour acrosThomas Wallace Knox
- Estes Park, ColoradoEstes Park Chamber of Commerce
- Wild Animals of Yellowstone National ParkHarold J. Brodrick
- Prairie, Peak, and Plateau: A Guide to the Geology of ColoradoJohn Chronic
- Identification of the Larger FungiRoy Watling
- Solario the Tailor: His Tales of the Magic DoubletWilliam Bowen
- Culinary Chemistry The Scientific Principles of Cookery, with Concise Instructions for Preparing Good and Wholesome Pickles, Vinegar, ConserFriedrich Christian Accum
- The Coming Ice AgeC. A. M. Taber
- The Attack in Trench Warfare: Impressions and Reflections of a Company CommanderAndré Laffargue
- The Raid of Dover: A Romance of the Reign of Woman, A.D. 1940Douglas Morey Ford
- BoschgeheimenWilliam J. Long
- The preparation & mounting of microscopic objectsThomas Davies
- The Natural History of Pliny, Volume 2 (of 6)the Elder Pliny
- The Geologic Story of Mount Rainier A look at the geologic past of one of America's most scenic volcanoesDwight R. Crandell
- Cassell's book of birds; vol. 3Alfred Edmund Brehm
- From Newton to Einstein: Changing Conceptions of the UniverseBenjamin Harrow
- Science Primers, IntroductoryThomas Henry Huxley
- The Birds of Australia, Vol. 2 of 7John Gould
- Agriculture of the Hidatsa Indians: An Indian InterpretationWaheenee
- The Boy Travellers on the Congo Adventures of Two Youths in a Journey with Henry M. Stanley "Through the Dark Continent"Thomas Wallace Knox
- Birds, Beasts and Flowers Poemsد. هـ. لورنس
- Puppet GovernmentGeorge Revelle
- A treatise on the art of making good wholesome bread of wheat, oats, rye, barley and other farinaceous grains Exhibiting the alimentary propFriedrich Christian Accum
- MidnightRutherford G. Montgomery
- Peggy's GiantMary D. Maitland Kelly
- Meditations on the Essence of Christianity, and on the Religious Questions of the Day.François Guizot
- A Hand-book of Precious StonesMeyer D. Rothschild
- The Courtship of AnimalsW. P. Pycraft
- The Parochial History of Cornwall, Volume 1 (of 4)Davies Gilbert
- The Parochial History of Cornwall, Volume 2 (of 4)Davies Gilbert
- The Parochial History of Cornwall, Volume 3 (of 4)Davies Gilbert