It is earnestly requested of all travellers, old and young alike, that they shall do their part toward preserving unimpaired the beauty of the spots that they visit, and that instead of disfiguring the landscape by scattering the débris of their lunch-baskets, together with torn papers and broken boxes, all along their route, they shall conscientiously avail themselves of the trash-cans everywhere liberally provided for their use. The names of a few reference books are herewith appended in order that the traveller who is especially interested in any particular line may be enabled to find some extra information along that line if he so wish. Doubtless there are countless other books to be had on any of these subjects, but I have tried to name one which will be of service in looking up birds, trees, flowers, pottery, blankets, glaciers, Indian basketry, cliff dwellings, etc., etc. THE END Footnotes for Part Five 1: From Williams, Ariz. 2: Charles F. Lummis. 3: Mr. W. H. Simpson, A. T. and S. F. R. R. 4: Drury. 5: Robert Sterling Yard. REFERENCE BOOKS A Study of Pueblo Pottery, _F. H. Cushing_ A Thousand Mile Walk to the Gulf, _John Muir_ A Tramp Across the Continent, _Chas. F. Lummis_ Arizona Nights, _Stewart Edward White_ Arizona and New Mexico, _H. H. Bancroft_ Beyond the Rockies, _C. A. Stoddard_ Birds of California, _Wheelock_ Birds of the Rockies, _L. S. Keyser_ California and the Southwest, _F. W. Martin_ California Desert Trails, _Joseph, S. Chase_ California Missions and Landmarks, _Mrs. A. S. C. Forbes_ California Tourist’s Guide, _Wells Drury_ California Wild Flowers, _Theodore Payne_ Designs on Prehistoric Pottery, _J. W. Fewkes_ Fifteen Thousand Miles by Stage, _C. A. Strahorn_ Flora of Middle Western California, _Jepson_ Flora of the Rocky Mountains and Adjacent Plains, _P. A. Rydberg_ Flora of the West Coast, _C. V. Piper_ Forest Trees of the Pacific Slope, _G. B. Sudworth_ Glaciers of Mount Rainier, _I. C. Russell_ Glaciers of North America, _I. C. Russell_ Highways and Byways of the Rocky Mts., _C. Johnson_ In and About the Grand Canyon of Arizona, _G. W. James_ In and Out of the Old Missions, _G. W. James_ In the Heart of the Sierras, _J. M. Hutchings_ In the Land of the Cliff Dweller and Indians of To-day, _T. M. Prudden_ Indian Basketry, _G. W. James_ Indians of the Painted Desert, _G. W. James_ Indians of the Yosemite Valley, _Galen Clark_ Indians of To-day, _G. B. Grinnell_ Journal of a Trip Through the Western Country, _Theo. Winthrop_ Land of the Cliff Dwellers, _F. S. Chapin_ Land of Poco Tiempo, _C. F. Lummis_ Land of To-morrow (Alaska) Land of Enchantment from Pike’s Peak to the Pacific, _Lillian Whiting_ Mountains of California, _John Muir_ Mountaineering and Exploration in the Selkirks, _Howard Palmer_ My First Summer in the Sierras, _John Muir_ Native Races, _H. H. Bancroft_ Navajo and His Blankets, _U. S. Hollister_