Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Appendix to the Paper by M. Greenwood, EM Newbold, WWC Topley and J. Wilson “On the Mechanisms by which Protection against Infectious Disease is acquired in'Natural'Epidemics
Journal of the Asiatic Society of Bengal vol. XXIII nros VI. VII (CCXLIV—V). vol. XXIV nros I—VI (CCXLVI—LI), vol. XXV nros I—IV (CCLII—LV), resp. New Series nros LXX—LXXXI