Book 109,199 Electronic 8,539 Government Document 8,321 Photo 6,850 Serial 5,666 Map 5,510 Journal 3,008 Unknown 2,174 Thesis 2,068 Kit 1,658 Newspaper 1,313 Manuscript 1,039 Book Chapter 724 Conference Proceeding 704 Reference Material 240 Musical Score 132 Audio 100 Physical Object 46 Article 16 see all ...

F - General American History 11,945 H - Social Science 9,526 K - Law 4,731 M - Music 4,583 P - Language and Literature 4,582 G - Geography, Anthropology, Recreation 4,340 Z - Library Science 4,060 E - United States History 3,593 L - Education 3,192 T - Technology 3,047 N - Fine Arts 3,012 A - General Works 2,933 B - Philosophy, Psychology, Religion 2,477 Q - Science 2,107 R - Medicine 1,940 C - Historical Sciences 1,348 S - Agriculture 1,047 J - Political Science 908 U - Military Science 407 D - World History 298 V - Naval Science 62 see all ...

Geological Survey (U.S.) 2,503 Pennsylvania 2,321 United States Congress 1,438 Pennsylvania General Assembly 1,058 Philadelphia Record 923 Pennsylvania Bureau of Topographic and Geologic Survey 853 Pennsylvania Supreme Court 790 Harris Collection of American Poetry and Plays (Brown University) Broadsides 669 Sharp, Joshua 665 Pennsylvania Comptroller-General's Office 653 Horace Howard Furness Memorial Library (University of Pennsylvania) 587 Playbill and Program Collection (University of Pennsylvania) 555 Philadelphia Theater Collection (University of Pennsylvania) 554 Franklin, Benjamin, 1706-1790 503 Walnut Street Theatre (Philadelphia, Pa.) 499 United States Bureau of the Census 491 Carey, Mathew, 1760-1839 480 Historical Society of Pennsylvania 476 Pennsylvania General Assembly. House of Representatives 470 United States Federal Emergency Management Agency 439 Price & Dickey 423 Chestnut Street Theatre (Philadelphia, Pa.) 419 Philadelphia City Planning Commission 419 O.W. Ketcham Terra Cotta Works 415 Pennsylvania Department of Public Instruction 408 Pennsylvania Historical and Museum Commission 388 Philadelphia (Pa.) 375 Ballinger Company 372 United States 365 Culture Class Collection (University of Pennsylvania) 343 see all ...

English 132,205 German 3,401 French 748 No linguistic content 372 Spanish 276 Latin 149 Undetermined 119 Italian 106 Yiddish 103 Hebrew 67 Polish 64 Dutch 59 Ukrainian 53 Japanese 50 Ancient Greek 46 Slovak 39 Swedish 38 Germanic 34 Lithuanian 34 Portuguese 31 Chinese 29 Russian 25 Multiple 18 Arabic 15 Greek 15 Hungarian 15 Korean 13 Latvian 10 Welsh 10 Norwegian 9 see all ...

History 7,477 Electronic books 7,307 Maps 6,223 Broadsides 5,813 Periodicals 5,359 Almanacs 4,935 Biography 4,693 Booksellers' advertisements 3,319 Catalogs 3,234 Fiction 2,256 Statistics 2,204 Biographies 2,193 Genealogy 1,952 Pictorial works 1,950 Church records 1,842 Trials, litigation, etc 1,576 Publishers' advertisements 1,565 Directories 1,518 Printed ephemera 1,464 Early works to 1800 1,420 Newspapers 1,389 Census records 1,387 Juvenile literature 1,255 Advertisements 1,208 Registers 1,160 Trade catalogs 1,149 Specimens 1,135 Manufacturers' catalogs 1,071 Deeds 1,059 Sources 1,037 see all ...

19th century 4,024 20th century 3,385 Revolution, 1775-1783 2,239 Civil War, 1861-1865 1,848 Colonial period, ca. 1600-1775 1,755 18th century 1,703 1775-1865 1,343 To 1775 1,222 1775-1783 924 1900 833 1861-1865 585 1800-1899 515 1900-1999 508 1706-1790 459 1775 - 1783 446 1600-1775 418 Early works to 1800 398 1861 - 1865 394 1863 386 1644-1718 383 1700-1799 310 1880 305 21st century 300 1732-1799 290 1800 - 1899 233 French and Indian War, 1754-1763 221 1865-1950 211 1775 - 1865 208 1600 - 1775 200 1794 197 see all ...