emphasis is on the biotic community; little reference to man directly.

ence, Lucile. Critical Stages in Reproduction: Instruction Materials in General Science and Biology. New York: Teachers College, Columbia University, 1966.

cial Issues Resource Systems. Population. Washington, D.C.: Exotech Systems, September 1971. ciological Resources for the Social Studies of the American Sociological Association: Hughes, Helen M., ed. Cities and City Life. Readings in Sociology Series. Boston: Allyn and Bacon, 1970.

Life in Families. Readings in Sociology Series. Boston: Allyn and Bacon, 1970.

Population Growth and the Complex Society. Readings in Sociology Series. Boston: Allyn and Bacon, forthcoming.

(Experimental units had been developed on the following subjects: "Family Size and Society" by George C. Meyers; "Migration Within the United States" by Basil G. Zimmer.)

ociology: Modular Learning Unit. Investigating Man's World Series: Regional Studies. Glenview, Illinois: Scott, Foresman, 1970. Entire unit devoted to population.

orvall, Vivian. Overpopulation: How Many are too Many? West Haven, Connecticut: Pendulum Press, Inc., 1971.

picer, Douglas. "Population Issues: Everyone's Concern?" Experimental edition. Ithaca, New York: International Population Program, Cornell University, April 1971. (Mimeographed.)

United Nations, Department of Economic and Social Affairs. A Concise Summary of the World Population Situation in 1970. Population Studies, No. 48. New York: United Nations, 1971.

U.S. Bureau of the Census. Pocket Data Book, U.S.A.: 1971. Issued biennially.

U.S. Bureau of the Census. Supplemental Courses for Case Studies in Surveys and Censuses, Demography Lectures. ISP Supplemental Course Series, No. 2. 1969. Brief series of definitions of demographic concepts and terminology.

U.S. Department of Commerce. Uncle Sam Counts, The Story of Census '70. Do You Know Your Economic ABC's? series. 1971.

Van Vleck, David B. How and Why Not to Have that Baby. Charlotte, Vermont: Optimum Population Inc., 1971. Senior high school.

Population Education in Elementary and

Wisconsin Department of Public Instruction. Pollution: Problems, Projects, and Mathematical Exercises, Grades 6-9. Madison, Wisconsin: Author, n.d.

Wozniak, Paul, and David Yaukey. Exercises in
Demographic Analysis: Student's Manual and
Exercises in Demographic Analysis: Instructor's
Manual. Amherst, Massachusetts: Department of
Sociology and Anthropology, University of Massa-
chusetts, 1968. Senior high school.
Serial Publications

The Population Council 245 Park Avenue

New York, New York 10017

Studies in Family Planning. A monthly bulletin.
Current Publications in Population/Family Planning,
a four-page abstract/bibliography. Issued every
other month.

Country Profiles, a series covering the nature, scope,
and accomplishments of population activities in
various countries based on
on an internationally
comparable outline. Issued when available.

Reports on Population/Family Planning, papers of
four to 50 pages setting out the best current
experience, information, and evidence on central
topics in population/family planning. Issued when
available.

Population Chronicle, a quasi-popular publication providing information on developments in the population field. Issued quarterly.

Council publications suitable for senior high use and teachers primarily.

The Population Reference Bureau
1755 Massachusetts Avenue, N.W.
Washington, D.C. 20036

Population Bulletin, focus on important aspects and
consequences of population growth in the United
States and abroad. Issued six times a year.
PRB Selection, occasional short essays reprinted
from existing articles or abridged from speeches.
Population Profile, concise, illustrated analyses of
significant, current population trends.

World Population Data Sheet, an annual 11" x 171⁄2" chart, suitable for wall or desk use, providing detailed population information for 137 countries. Some Games and Simulations

"Balance." Interact, Lakeside, California, Seventh grade to college.