326 



PERSONAL AND CIVIC HYGIENE 



At the top of the left vertical line but one write Jan. ; the 

 fourth, Feb., etc., or rule paper as in Figure 83. 



Let the spaces between the heavy horizontal lines represent 

 50 deaths. 



Kefer to mortality tables published by Departments of 

 Health of various cities and get such data as is represented 

 in the following table, 1 which was taken from one published in 

 the Annual Report of Department of Health of the city of 

 New York, 1908, p. 841 (except data for flies, which came 

 from a supplemental report of the Merchants' Association of 

 New York). 



i Courtesy of Dr. W. H. Allen, Director of the Bureau of Municipal 

 Research, New York. 



