A CONJECTURED CORRELATION BETWEEN DEPRESSIONS OF THE MANIC-DEPRESSIVE AND INVOLUTIONAL MELANCHOLIC TYPES AND ETHNIC ELEMENTS IN THE PRESENT-DAY POPULATION OF BRITAIN
ROBERT GIBSON M. D., CH. B., D. P. M.1
1 Deputy Medical Superintendent, Derby County Mental Hospital, England
Observations have been made on some aspects of the geographical distribution of manic-depressive and involutional melancholic psychoses, and suggestions have been offered as to the possible presence of genetic factors in the etiology of these psychoses.
