Brockman, Frank C. Trees of Mount Rainier National Park. 49 pp. Univ. of Washington Press. Seattle, 1949. (Popular.) Excellent guide to identification of trees which also occur in Olympic National Park. Written by former chief park naturalist.
Lyons, Chester P. Trees, Shrubs and Flowers to Know in Washington. 211 pp. J. M. Dent. Vancouver, Canada, 1956. (Popular.) Well illustrated aid to identification of most of the plants in the park.
Sharpe, Grant and Wenonah Sharpe. 101 Wildflowers of Olympic National park. 40 pp. Univ. of Washington Press. Seattle, 1954. (Popular.) Excellent inexpensive guide to the most conspicuous flowers the visitor will see. Written by a former ranger-naturalist.
Mammals
Cahalane, Victor H. Meeting the Mammals. 133 pp. MacMillan, New York, 1943. (Popular.) A guide to the mammals of all our National Parks.
Graf, William. The Roosevelt Elk. 105 pp. Port Angeles Evening News. Port Angeles, Wash., 1955. A study of the habits of the Roosevelt elk in the coast range of Oregon and California.
Hubbard, Fran. Animal Friends of the Northwest. 32 pp. Awani Press. Fresno, Calif., 1957. Illustrated. Excellent for children.
Newman, Coleman. The Roosevelt Elk of Olympic National Park. 23 pp. The Olympic Natural History Assoc. Port Angeles, Washington, 1958. Story of the most impressive wildlife species in the park. Written by a former park biologist.
Birds
Kitchin, Edward A. Birds of the Olympic Peninsula. 262 pp. Olympic Stationers. Port Angeles, Wash., 1949. A description of 261 species of birds by a naturalist who spent 50 years observing the birds of Washington.