No dwelling, rooming-house, or tenement, or any part thereof, occupied as such, shall be used as a place of storage, keeping, or handling of feed, hay, straw, excelsior, cotton, paper-stock, feathers, or rags, or for any matter or thing dangerous or detrimental to health or life, except as hereinafter provided; nor shall any such building or any adjacent or contiguous property receive, store, or keep dung, or manure of any kind, except a stable, where such cleanings from the stalls may be stored for a period of not longer than seven days, in a water-tight sanitary bin, built wholly inside the building line of the property upon which it is situated: Provided, That in sparsely populated districts such stable cleanings may be kept for a longer period, if kept according to the rules and regulations of the Board or Bureau of Health.¹