PROTECTION OF RIVER AND HARBOR WATERS 



A MUNICIPAL BATHING-PLACE 



Free floating baths at various places along the waterfront are placed in close proximity 

 to sewer outlets, thus menacing the lives of many who frequent these baths during the 

 summer months. Photograph of a model in the American Museum 



sewer outlets. It cannot be doubted that such conditions furnish excel- 

 lent opportunities for infection of various sorts. 



The safe and inoffensive disposal of the wastes of a large city is a difficult 

 but by no means an insuperable task. It involves one or more of three 

 main processes, according to local conditions — namely, the elimination of 



Fine mesh revolving screen and detritus tank for removing suspended solids from 

 sewage. Photograph of a model in the American Museum 



