By Philip Manson-Bahr, C.M.G., D.S.O., F.R.C.P., with an Appendix by W. John Muggleton, M.S.M. Pp. I–XIV, 1–613. Williams and Wilkins Co., Baltimore, Md., 1939
St. Louis encephalitis virus has been recovered from the serum of a nestling bird in Trinidad, B.W.I. This is the first time this agent has been recovered from a local, nonmigratory bird south of the continental limits of the United States.