COMPILED FROM MATERIALS IN THE NCJRS COLLECTION PUBLISHED FROM 1955 TO 1979, THE BIBLIOGRAPHY REFLECTS THE CUMULATIVE RESEARCH ON THE RELATIONSHIP BETWEEN BIOLOGICAL FACTORS AND CRIMINALITY. AMONG THE TOPICS EXPLORED ARE THE INFLUENCE OF EPILEPTIC DISORDERS, LEARNING DISABILITIES, MINIMAL BRAIN DYSFUNCTIONS, VISUAL PROBLEMS AMONG DELINQUENTS, NEUROLOGICAL ABNORMALITIES, AND DISORDERS OF THE BRAIN OR DISTURBANCES IN ITS CHEMICAL BALANCE. GENETIC STUDIES EXAMINE THE POSSIBILITY OF INHERITABLE ASPECTS OF CRIMINALITY. STUDIES ON DISORDERS IN THE ENDOCRINE AND LIMBIC SYSTEMS ARE PRESENTED, ALONG WITH THOSE ON PSYCHOPHYSIOLOGICAL INDICES, GALVANIC SKIN RESPONSES, AND BIOCHEMICAL BALANCES. MATERIALS INCLUDE BOOKS, JOURNAL ARTICLES, RESEARCH REPORTS, AND PROJECT DOCUMENTATION. A FEW FOREIGN LANGUAGE MATERIALS ARE CITED. THE 324 CITATIONS ARE ARRANGED ALPHABETICALLY BY TITLE; AUTHOR AND SUBJECT INDEXES ARE APPENDED. THE NCJ ACCESSION NUMBERS, BIBLIOGRAPHIC INFORMATION, AND AVAILABILITY SOURCES ARE PROVIDED.