366 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 7 



may fail to contain a single one of these bodies, the necessity for pro- 

 longed search is apparent. The writer finds that the smears from his 

 laboratory animals have never shown any approach to the abundance 

 of the rc-bodies often exhibited by smears from human cases. While 

 the bodies are present in these animals, they usually exist in extremely 

 small number compared with the average of human cases. An impor- 

 tant point also is to take smears at least twice daily from the animal 

 immediately following inoculation. The bodies may usually be found 

 during the first three days. After the eruption has begun to appear, 

 it is quite useless to look for them. 



Despite repeated and persistent search from July to October, the 

 early stages of the Phlebotomus have not yet been discovered. It has 

 thus not been possible to attempt the rearing or breeding of them for 

 infection experiments. While no doubt this could be accomplished 

 with unlimited facilities, it is not at all necessary to the complete 

 demonstration of the transmission, already secured, and its realization 

 is not warranted by the conditions. At best it would probably be one 

 of the most difficult entomological feats ever attempted. 



BIBLIOGRAPHY 



TowNSEND, Charles H. T. The possible and probable etiology and transmission 

 of verruga fever: Jour. Econ. Ent., VI, 211-225. Prepared in 1912. 



A tick the probable carrier of verruga: Inca Chronicle, V, 13-18. Prepared 



in Feb., 1913. 



-La titira es trasmisora de la verruga: Cronica Medica, XXX, 210-211. 



Dated June 27, 1913. 



A Phlebotomus the practicalh' certain carrier of verruga: Science, N. S. 



XXXVIII, 194-195. Dated June 29, 1913. 



-Progress in the study of verruga transmission by bloodsuckers: Bull. Ent. 



Research, 1\, 125-128, pis. X-XII. Dated June 29, 1913. 



-(In) La verruga — Investigacion cientifica ordenada por el gobierno — Exito 



de los trabajos: El Comercio (Lima), July 2, 1913, p. 2. Dated June 30, 1913. 

 West Coast Leader. — The conquest of verruga — -Dr. Townsend announces impor- 

 tant discovery — The story of the dread scourge: West Coast Leader (Lima), July 



3, 1913, pp. 1 and 9. 

 NoTiciAs. Notable descubrimiento cientifico — El insecto que propaga la verruga — 



Hallazgo cerca de Matucana — Investigaciones de laboratorio en Lima: Noticias 



(Lima), July 4, 1913, p. 2. 

 Anderson, Daniel E. The cause of a Peruvian disease: London Times, July 12, 



1913, p. 7. 

 Odriozola, Ernesto. (In) El vector de la verruga — iEs el insecto hallado en 



Matucana? No se ha comprobado hasta ahora — Reportaje al doctor Odriozola: 



Noticias (Lima), July 12, 1913, p. 2. Interview given July 8,. 1913. 

 Townsend, Ch.'Lrles H. T. (In) Verruga — The conquest of the disease: West 



Coast Leader, July 17, 1913, p. 3. Dated July 14, 1913. 

 — (In) La enfermedad de Carrion — El vector de ella es el Phlebotomus — Dec- 



laraciones del doctor Townsend: Noticias, July 19, 1913, p. 6. Interview given 



July 14, 1913. 



