Box and metal apparatus: "Dr. Geo Leininger's Formaldehyde Generator, the most potent disinfectant and antiseptic known to the medical profession, cures by inhalation, a perfect and most convenient apparatus for the generation of formaldehyde gas from solidified formaldehyde, for the cure of whooping cough, croup, diptheria, yellow fever, small pox, scarlet fever, measles, bronchitis, asthma, gatarrh, hay fever, pneumonia and all nose, throat and lungs diseases."