Varieties of rat fleas, 32 of rat traps, 45 Variations in number of fleas per rat (Java), 78 Van Loghem, Dr. J. J., 82, 84 Variations in the rat catch, 88 Vaccines, plague, 178, 179 Vaccine, Haffkine, 178, 179 Vaccines, combined, 179 Widespread dissemination in recent years, 23 West Indies, plague in, 29 Wane of epidemics, 15, 35 Work of Sanitary Board (Hong Kong), 158 Xenopsylla cheopis in Java, 77 Zoölogic classification of rats, 98 Transcriber's note: The following corrections have been made: Title page: Period added after J in "J B. Lippincott Company" Dedication: Period added after "DAYS IN SERBIA" Table of Contents: "Epidemic, By Dr. Otto Schöbl" By changed to by p. 21: "christendom" changed to Christendom p. 32: Removed italic type from the word genus in "genus Ctenocephalus" p. 62: "secondary to this July case" July changed to June p. 78: "known as Loemopsylla cheopsis" Loemopsylla changed to Lœmopsylla p. 132: "While cases 5, 2, 19, and 24 appeared" 2 changed to 11 p. 139: "fleas from a plagueinfected house" plagueinfected changed to plague-infected p. 142: "usually met with in" with in changed to within p. 147: "Echinococcus teniæformis was found in the liver" teniæformis changed to taeniæformis Index: "Swellengreble" changed to Swellengrebel Footnote 5: "Jena (1903) 2" added comma after closing bracket Everything else retained as printed, including inconsistencies in hyphenation. The index entry for Simpson, Dr. W. J. is missing its page reference. End of the Project Gutenberg EBook of Plague, by Thomas Wright Jackson