"E"@en. "History Germany"@en. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "60"^^. "EAA"@en. "Per. And Society Publications"@en. . . . "EAC"@en. "Dictionaries"@en. . . . "EAD"@en. "General And Systematic Works"@en. . . . "EAE"@en. "Abridgments. School Histories"@en. . . . "EAG"@en. "Collections"@en. . . . "EAH"@en. "Essays. Miscellanies"@en. . . . "EAM"@en. "Government. Politics"@en. . . . "EAR"@en. "Foreign Relations. Diplomatic History"@en. . . . "EAS"@en. "Social And Cultural History"@en. . . . "EAW"@en. "Description And Travel"@en. . . . "EB"@en. "(843). General Medieval History. Historical Archaeology"@en. . . . . . . . . . . . "EC"@en. "Leopold II To William I (1790-1871) 19th Century In General"@en. "Letters. Memoirs. Speeches, etc., "@en. . . . . . . . . . "ED"@en. "Empire (1871-1918)"@en. . . . . . . . "EH"@en. "Prussia: Bibliography"@en. . . . . . . . . . . . . "EIA"@en. "East Prussia: Per. And Society Publications"@en. . . . "EIB"@en. "History And Description"@en. . . . "EIC"@en. "West Prussia: Per. And Society Publications"@en. . . . "EID"@en. "History And Description"@en. . . . "EIF"@en. "Berlin (province And City): Per. And Society Publications"@en. . . . "EIG"@en. "History And Description"@en. . . . "EIM"@en. "Brandenburg: Per. And Society Publications"@en. . . . "EIN"@en. "History And Description"@en. . . . "EIP"@en. "Pomerania: Per. And Society Publications"@en. . . . "EIR"@en. "History And Description"@en. . . . "EIT"@en. "Posen: Per. And Society Publications"@en. . . . "EIV"@en. "History And Description"@en. . . . "EIX"@en. "Silesia: Per. And Society Publications"@en. . . . "EIY"@en. "History And Description"@en. . . . "EK"@en. "Saxony (prussian): Per. And Society Publications"@en. . . . . . . . . . . . . . . . . . . . "EL"@en. "Bavaria: Bibliography"@en. . . . . . . . . . . . . . . . "EM"@en. "Unknown Classmark"@en. . . . . . . . . "EN"@en. "Unknown Classmark"@en. . . . . . . . . . . . . . "EOB"@en. "Saxe-Weimar. Thuringia"@en. . . . "EOK"@en. "Oldenburg"@en. . . . "EOT"@en. "Brunswick"@en. . . . "EPA"@en. "Saxe-Meiningen And Saxe-Altenburg: Per. And Society Publications"@en. . . . "EPB"@en. "General History And Description"@en. . . . "EPK"@en. "Saxe-Coburg-Gotha"@en. . . . "EPT"@en. "Anhalt"@en. . . . "ERE"@en. "Schwarzburg-Rudolstadt And Schwarzburg Sondershausen"@en. . . . "ERG"@en. "Waldeck"@en. . . . "ERP"@en. "Reuss: Both Elder And Younger Line"@en. . . . "ERV"@en. "Schaumburg-Lippe"@en. . . . "ERW"@en. "Lippe"@en. . . . "ESB"@en. "Lubeck"@en. . . . "ESI"@en. "Bremen: Per. And Society Publications"@en. . . . "ESK"@en. "History And Description"@en. . . . "ESS"@en. "Hamburg: Per. And Society Publications"@en. . . . "EST"@en. "History And Description"@en. . . . "ET"@en. "Imperial Territory Alsace-Lorraine. Bibliography"@en. . . . . . . . . . . "EY"@en. "Colonies And Dependencies In General"@en. . . . . . "EZ"@en. "Unknown Classmark"@en. . . . . "The Billings Classification is a subject classification developed by John Shaw Billings in 1899. It was not an abstract experiment in the mapping of human knowledge, but rather a system devised specifically for the optimum arrangement of the Library’s collections. Dr. Billings envisioned a layout for the building, and while his classification scheme was in fact a division of human intellectual achievement into various subject areas designated by letter codes varying in number (usually three), it was fashioned in such a way as to maximize access to the unique holdings of the Library. The planned physical space—how things would function—all played a role in the construction of his classification. The majority of the Billings classmarks are not longer in use, as NYPL began using a fixed order system in the 1950s."@en. "Billings"@en. . . . . . . . . . "448"^^. . . . "1"^^. . . . "235"^^. . . . "34"^^. . . . "2256"^^. . . . "242"^^. . . . "466"^^. . . . "259"^^. . . . "375"^^. . . . "319"^^. . . . "129"^^. . . . "42"^^. . . . "181"^^. . . "2"^^. "1"^^. . . . "47"^^. . "5"^^. . . "8"^^. . . . "21"^^. . . . "136"^^. . . "9"^^. . . . "56"^^. . . "15"^^. . . . "27"^^. . . "2"^^. . . "11"^^. . . . "86"^^. . . . "90"^^. . . "14"^^. . . . "1"^^. . . "3"^^. . "2"^^. . . . "50"^^. . . "17"^^. . . . "54"^^. . . . "3"^^. "1"^^. . . . "15"^^. . "10"^^. . "1"^^. "3"^^. . . "2"^^. "0"^^. . "8"^^. . . "47"^^. . . . "1"^^. . . . "45"^^. . . . "38"^^. . . . "63"^^. . . . "11"^^. . . . "63"^^. "2"^^. . . . . . . . . . . . . . . . . . . . . . "Z2000-2959"@en. "Europe"@en. . . . "8930"^^.