
The SciencesNovember 27, 1886
The Purification of Air
An Experimental Study in Relation to the Removal from the Air of the Dust or Particulate Material Supposed to Produce Yellow Fever, Small-Pox, and Other Infectious Diseases

The Purification of Air
An Experimental Study in Relation to the Removal from the Air of the Dust or Particulate Material Supposed to Produce Yellow Fever, Small-Pox, and Other Infectious Diseases