THIS EARTH SCIENCE CURRICULUM PROJECT (ESCP) REFERENCE SERIES PROVIDES INFORMATION ON SOURCES OF MATERIALS, CLASSROOM TEACHING AIDS, LABORATORY AND FIELD PROJECT SUGGESTIONS, AND OTHER RELATED TOPICS IN THE FIELDS OF (1) ASTRONOMY, (2) GEOLOGY, (3) METEOROLOGY, (4) OCEANOGRAPHY, AND (5) PHYSICAL GEOGRAPHY. THESE PAMPHLETS ARE INTENDED TO AID THE ELEMENTARY AND SECONDARY SCHOOL TEACHERS TEACHING EARTH SCIENCE. THIS PARTICULAR PAMPHLET IS A DIRECTORY OF PLANETARIUMS, OBSERVATORIES, AND MUSEUMS HAVING EARTH SCIENCE EXHIBITS IN THE UNITED STATES AND CANADA. THEY ARE LISTED BY CITY AND PROVINCE OR STATE, AND ARE ANNOTATED, PROVIDING INFORMATION SUCH AS (1) OFFICIAL NAME, (2) ADDRESS, (3) TELEPHONE NUMBER, (4) VISITING HOURS, (5) PRICE OF ADMISSION, (6) DIRECTOR, (7) FEATURES (BY CODED CATEGORY), AND (8) A BRIEF DESCRIPTION OF THE NATURE OF THE EARTH SCIENCE MATERIAL ON DISPLAY. SOME GENERAL SUGGESTIONS ARE MADE REGARDING THE PLANNING OF FIELD TRIPS. THIS DOCUMENT IS AVAILABLE AS RS-6 FOR $0.35 FROM EDUCATIONAL BOOK DIVISION, PRENTICE-HALL, INC., ENGLEWOOD CLIFFS, NEW JERSEY 07632. (DH)