ENTOMOLOGY

DISEASES BORNE BY NON-BITING FLIES 113throughout the metamorphosis of Musca domestica. Graham-Smith.(1918) found that flies of Musca domestica fed on this bacillus may infectmilk for several days, while Calliphora vomitoria flies when infected constantlyproduced infection in milk up to the eighth day and in syrup upto the twenty-ninth day.Bacillus proteus vulgaris Hauser, B. p. mirabilis Hauser, and B. p.zenkeri were fed by Co.o (1906B) to larvre of Musca domestica, Calliphoravomitoria, Sarcophaga carnaria, and Lucilia casar, and Wf!re foundabundantly in the feces of the larvre so fed. Species of Proteus were 0.150found deposited with the eggs of flies fed on infected flesh. Bacillusproteus vulgaris was isolated by Scott (1917) from Musca domesticacaught in Washington.Bacillus pyocyO/Tleus Gessard associated with SUPPURATINGWOUNDS in which blue-green pus is present was isolated in two strainsfrom flies caught in Liverpool by Cox, Lewis a:p.d Glynn (19Hl)~ Bacotand Ledingham (1911) by carefully controlled experiments have provedthat the larvre of Musca domestica fed on infected food retain this bacillusin the gut through the metamorphosis to the adult stage and may distributeit in their excreta.Bacillus radiciformis Tataroff, a saprophytic organism found inwater, was fed by Cao (1906B) to larvre of Musca domestica, Calliphoravomitoria, Lucilia casar and Sarcophaga carnaria, and recovered fromthe feces of the larvre.Bacillus rube1' kielensis Ureunig, a chromoparous (red) bacillus foundin water at Kiel, was fed by Cao (1906B) to larvre of Musca domestica.Sarcophaga carnaria, Calliphora vomitoria, and Lucilia casar, and hedemonstrated that the laryre could take it up in all stages of growth, andthat the bacilli persisted in their bodies through pupation to maturity.Bacillus schafJeri Freudenreich, a nonpathogenic, zymogenic organism,found in "puffy" and "Nissler" cheese, has been found by Nicoll (1911) inLondon on the body and in the intestines of Musca domestica.Bacillt£8 septict£8 agrigenu.s Nicolaier, a pathogenic organism, was fedby Marpmann (1897) to flies, and U hours later the contents of theflies were inoculated into mice, producing fatal infection in a large percent of the inoculations (Nuttall 1899).Bacillus "similcarbonclUo" Cao, a pathogenic organism similar toBacillus a,nthracis, ,vhich produces CARBUNCLES when inoculated, wasfed by Co.o (1906B) to larvre of Musca domestica, Calliph.ora vomitoria,Lucilia ct1!sar and Sarcophaga carnaria and isolated from the feces otthe larvre in a very virulent strain. In examinations of many flies caught:in the laboratory he occasionally isolated a non-pathogenic, mobile strainof this organism. .Bacillus 8ubtilis Ehrenberg, an organism frequently found in air,