October 1975, Vol. 15, No. 4

Front Matter

CONTENTS

SYMPOSIUM ON NATURAL RESOURCE PROPERTY RIGHTS

Changing Natural Resource Property Rights: An Overview         639
W. D. Seitz, J. C. Headley

Coal Resource Ownership: Patterns, Problems, and Suggested Solutions          643
F. Larry Leistritz, Stanley W. Voelker

Water Problems and Property Rights—An Economic Perspective          663
C. Dirck Ditwiler

Property Rights in Land: New Statutory Approaches         681
Fred P. Bosselman

Property Rights in the World Ocean          695
Francis T. Christy, Jr.

"Common Property" as a Concept in Natural Resources Policy         713
S. V. Ciriacy-Wantrup, Richard C. Bishop

Property Rights and Social Microeconomics         729
Alan Randall

Fee Simple Absolute as a Variable Research Concept         749
Donald M. Carmichael

Alternative Approaches to the Organization of Public Proprietary Interests          765
Vincent Ostrom

Conservation of Extinguishable Species          791
Charles Plourde

NOTES AND COMMENTS

Minimum Stream Flows-Federal Power to Secure        799
David Grady

Appropriation by the State of Minimum Flows in New Mexico Streams         809
John Draper

Books Received         823

Index—Volume 15    825