Show PS Aor iffl Plague and Fleas f 1 f The part played by fleas In the 1 spread of plague Is dealt with In ant an-t ff r 4 I able manner by J W W S in Na 11 l turo A LaUn writer Avicenna Is quoted to show that about the year 1600 It was known that there was some r < definite connection between rats and i 4 i Cf plague in more recent years it has JiI 1 been a matter of common observation j rI 1 f In India that In times of plague a largo 4 1y number of dead rats are found And f I these are found contain the plague II bacilli in abundance In 1898 81 mend expressed the view that in the it majority of cases tho plaguo was conJ con-J veyed from the rat to man through t1 1 L the agency of the flea Experiments j which be tried with fleas from rats i dead of the plaguo showed how this is c possible Other experimenters have 1 obtained similar results while others r j have been led to doubt Simonds generalization r t gen-eralization |