In offering these remarks as to needed legislation in the interests of the public health, I follow some indications suggested as much by observation in my practice as by experience in my official position. In Chicago, where is concentrated more than one-third of the population of the State of Illinois, many of the defects and inadequacies of existing health laws are more apparent than in smaller communities; evils that are scarcely felt in the rural districts, and only slightly in smaller municipalities, strongly impress themselves upon us. I shall, however, confine myself to a few subjects in regard to which it seems to me some general legislation, applicable to the whole State, is needed or would, at least, be advisable. Even if the necessity therefor seems the greater in such a center of population as Chicago and is hardly felt in many other localities, it does not follow that these