462 



THE POPULAR SCIENCE MONTHLY 



Wabds. 



Twentieth . . . . , 

 Twenty-first. . . . 

 Twenty-second . 

 Twenty-third.. , 

 Twenty-fourth. . 

 Twenty- fifth . . 

 Twenty-sixth.. . 

 Twenty-seventh 

 Twenty-eighth.. 

 Twenty-ninth . . 



Thirtieth 



Thirty-first 



Thirty-second . . 



Thirty- third 



Thirty-fourth.. . 



Total 



1870. 



56,642 

 13,861 

 22,605 

 20,888 

 24,932 

 18,639 

 36,603 

 19,385 

 10,370 



674,022 



1880. 



43,207 

 19,699 

 31,798 

 26,644 

 46,071 

 36,108 

 35,138 

 23,333 

 34,443 

 40,787 

 29,098 

 31,308 



847,170 



1890. 



44,480 

 26,900 

 45,329 

 35,294 

 42,556 

 35,945 

 62,138 

 32,905 

 46,390 

 54,759 

 30,614 

 32,974 

 30,050 

 33,171 

 23,721 



1,046,964 



Boston — Population hy Wards. 



Wards 1 and 2 comprise East Boston; Wards 3, 4, and 5 comprise Charlestown ; 

 Wards 13, 14, and 15 comprise South Boston. 



Tlie population of Boston by wards for 1870 can not be stated, 

 because the geographical boundaries of wards were changed in 

 1875 ; but other data relative to Boston can be used for the illus- 

 tration of the point I desire to make. In the other cities named, 

 New York and Philadelphia, the geographical boundaries of 

 wards have been identical under the last three Federal cen- 

 suses. From the foregoing tables I have combined what might 

 be called the "congested" wards of each of the cities. Elimi- 

 nating these from all the wards, and constructing a new table, 

 we have the facts relative to the population for all wards for 

 the years named, for the congested wards stated separately, and 

 for the remaining wards, in each of the cities. This table is as 

 follows : 



