CHAPTER IX

FLEAS AND PLAGUE 142

Great scourges, 142; the "black death," 142; old conditions and new, 143; _How plague was controlled in San Francisco_, 143; _Indian Plague commission_, 144; Dr. Simond's claim, 145; The advisory committee and the new commission, 146; _Results of Dr. Verjbitski's experiments_, 147; _Results of various investigations_, 150; _structure and habits of fleas_, 151; feeding habits, 152; _Common species of fleas_, 153; _Ground squirrels and plague_, 155; squirrel fleas, 156; _Remedies for fleas_, 157; cats and dogs, 159.