43 



4. A selection of large ads, some occupying' a full page. Most of 

 these appeared at times when the dust was at its maximum, namely in the 

 fall and again in the spring. The title of this sheet was: "Who Pays the 

 Bill?" 



5. Chart showing the seasonal prevalence of patent medicine ads. 

 The fall and spring tides; low ebb in the summer. (In the summer the 

 sputum on the sidewalks is sterilized by the hot rays of the sun, the 

 streets are sprinkled and doors and windows are open.) 



G. Clippings pasted on sheets showing the changes in names in the 

 same advertisement at different times of the year, and from day to day 

 or week to week. The words catarrh, colds, rheumatism, kidney disease, 

 etc., being marked in red or blue-as indicated on chart No. 1. 



