idditional Reading 
Plant Defense” (in Herbivores: Their 
Interactions with Secondary Plant 
Metabolites, edited by G.A. Rosenthal 
and D.H. Janzen, New York: Academic 
Press, 1979, pp. 331-50) is a general 
outline of plant-herbivore interactions, 
presenting data on plant-induced mech- 
anisms. Also readable, although written 
in a technical format, is E. Haukioja’s 
“On the Role of Plant Defenses in Her- 
bivore Population Fluctuations” ( Oikos , 
vol. 35, pp. 202-12). 
Great Plains (p. 54) 
Historian W.P Webb’s classic history 
The Great Plains (Lincoln: University 
of Nebraska Press, 1981, S9.95), origi- 
nally published in 1931, has recently 
been reissued in paperback. Webb’s ac- 
count of the interactions between the 
central plains and the people who settled 
it includes physical description, history, 
anthropology, literature, and economics. 
Love Song to the Plains (Lincoln: Uni- 
versity of Nebraska Press, 1966, $3.50 
in paperback) is M. Sandoz’s lyrical 
salute to the area and the different types 
of people who became plainsmen. G. 
Hyde spent thirty years studying the 
Pawnee, the Plains tribe whose territory 
once spanned from Nebraska to Mex- 
ico. His 372-page assessment of the 
tribe, its culture, religion, and political 
organization is The Pawnee Indians 
(Norman: University of Oklahoma 
Press, 1974). P. Farb’s Face of North 
America, with illustrations by J. Con- 
nolly (New York: Harper and Row, 
1963), is a well-written, standard natu- 
ral history of the continent, with a sec- 
tion devoted to the Plains. 
Terns (p. 62) 
Two popular books on terns are M. 
Harwood’s The View from Great Gull 
(New York: E.R Dutton, 1976), about 
terns on Long Island, New York, and J. 
Hay’s The Spirit of Survival (New 
York: E.P Dutton, 1974), a natural and 
personal history of the common tern. 
Both are easy to read and accurate. A 
classic study on which most recent work 
is based is R.S. Palmer’s A Behavior 
Study of the Common Tern ( Proceed - 
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