Genre
Periodicals
99
Statistics
38
Early works to 1800
11
Congresses
6
Sources
5
Census, 1870
4
Census, 9th, 1870
4
Handbooks, manuals, etc
4
Census, 1850
3
Census, 1860
3
Census, 7th, 1850
3
Census, 8th, 1860
3
Newspapers
3
Census, 10th, 1880
2
Census, 1880
2
Bibliography
1
Biography
1
Case studies
1
Census, 1990
1
Dictionaries
1
Genealogy
1
Indexes
1
Juvenile literature
1
Quotations, maxims, etc
1
Statistics, Vital
1