Postmortem Examination of Rats.
Month.
Total.
Male.
Female.
Plague infected.
Pregnant
Newly born and not classified.
Month Total Male Female Plague infected Pregnant Newly born and not classified January 6,244 3,097 2,914 388 233 February 5,078 2,454 2,441 285 183 March 7,805 3,794 3,664 416 347 April 8,193 3,848 3,957 474 388 May 8,509 4,058 4,068 476 383 June 8,314 3,962 4,033 480 319 July 8,098 3,855 3,958 478 285 August 8,204 3,973 3,915 405 316 September 7,855 3,738 3,823 453 294 October 8,356 3,858 4,100 498 398 November 8,412 3,924 4,074 479 414 December 8,170 3,890 3,883 475 397 Total 93,238 44,451 44,880 5,302 3,957M (1) 36