Studies Upon Leprosy. XIX. Glandular Tuberculosis Among Lepers at the Molokai Settlement, by George W. Mc Coy ... XX. The Danger of Association with Lepers at the Molokai Settlement, by George W. Mc Coy ... and William J. Goodhue ... XXI. Absence of Luetin Reaction on Lepers Showing a Positive Wasserman Reaction, by Moses T. Clegg ... XXII. The Presence of Acid-fast Bacilli in Secretions and Excretions of Lepers, by Harry T. Hollmann ... XXIII. Fecundity of Hawaiian Lepers, by George W. Mc Coy ... XXIV. Observations on Naturally Acquired Rat Leprosy, by George W. Mc Coy ... XXV. Immunity Studies in Leprosy, by Moses T. Clegg ... George W. McCoy ... Harry T. Hollmann ... XXVI. The Cultivation of Acid-fast Bacilli from Lepers by the Use of Symbiotic Organisms, by George W. McCoy ... XXVII. A Statistical Study of Leprosy in Hawaii, by George W. McCoy ...