- Yale Art Gallery, use Yjg (School of Fine Arts)
| YLa | Dept. of Education (Graduate School) | |||
| YLa10 | Periodicals | |||
| YLa11 | Bibliography | |||
| YLa31 | Administration. Official reports (A1-9) | |||
| YLa51 | General policy & organization, including history | |||
| YLa65 | Curriculum | |||
| YLa71 | Lectures | |||
| YLa81 | Catalogs, etc. | |||
| A2 Courses of study | ||||
| A4 Summer institutes | ||||
| YLa91 | Clubs | |||
| YLa95 | Yale Psycho-Clinic (became Clinic of Child Development, YLc95) | |||
| YLb | Institute of Psychology
(became Dept. of Psychology in Institute of Human Relations, YLc) |
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| YLb10 | Periodicals | |||
| YLb81 | Announcements | |||
| YLbi | Biology | |||
| YLc | Institute of Human Relations | |||
| YLc10 | Periodicals | |||
| YLc31 | Administration. Official reports (A1-9) | |||
| YLc51 | General policy & organization, including history | |||
| YLc81 | Catalogs | |||
| YLc93 | Clubs | |||
| YLc95 | Clinic of Child Development | |||
| YLc96 | Child Study Center | |||
| S9+ date Child Study Center Symposia | ||||
| YLd | African-American Studies | |||
| YLd10 | Periodicals | |||
| YLd81 | Catalogs | |||
| YLe | East-Asian Studies | |||
| YLe10 | Periodicals | |||
| YLec | Computer Science | |||
| YLec10 | Periodicals | |||
| YLen | Council on Engineering | |||
| YLen10 | Periodicals | |||
| YLen51 | General policy & organization, including history | |||
| YLen81 | Catalogs | |||
| YLf | Anthropology Dept.
[conflict w/Yale Film Studies—use YLfi?] |
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| YLf10 | Periodicals | |||
| YLf51 | General policy & organization, including history | |||
| YLi | Italian Studies | |||
| YLi10 | Periodicals | |||
| YLia | Dept. of Industrial Administration | |||
| YLia10 | Periodicals | |||
| YLia31 | Administration. Official reports (A1-9) | |||
| YLj | Judaic Studies | |||
| YLj10 | Periodicals | |||
| YLm | Dept. of Microbiology | |||
| YLm10 | Periodicals (A-Z) | |||
| YLp | Yale Center for British Art | |||
| YLp10 | Periodicals | |||
| YLp31 | Administration. Official Reports (A1-9) | |||
| YLp41 | Paul Mellon Centre | |||
| YLp51 | General policy & organization, including history | |||
| YLp95 | Individual artists (generally exhibitions) | |||
| YLr13 | Bureau of Highway Traffic | |||
| YLr14 | Institute of Far Eastern Languages | |||
| YLr15 | Institute of International Studies | |||
| YLr16 | Judaica Research on the Rabinowitz Foundation | |||
| YLr17 | Labor and Management Center | |||
| YLr18 | Cowles Foundation | |||
| YLr19 | Economic Growth Center (A11-19) | |||
| YLr20 | Dept. of Chemical Engineering | |||
| YLr21 | Human Relations Area Files | |||
| YLr23 | International Security Studies | |||
| YLr25 | National Research Council - Yale Aeromedical Research Unit | |||
| YLr26 | Center for Systems Science
(the only Yale class record for this institute was assigned YLr28) |
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| YLr27 | Dept. of Applied Physics | |||
| YLr28 | Dept. of Electrical Engineering | |||
| YLr29 | Institute for Social & Political Studies | |||
| A11-19 | Institute of Social Sciences | |||
| B11-19 | Center for the Study of Education | |||
| C11-19 | Center for the Study of the City | |||
| D11-19 | Bioethics | |||
| YLr31 | Antilles Residential Program | |||
| A11 | Periodicals (A-Z) | |||
| A13 | General policy & organization, including history | |||
| YLr32 | Center for International and Area Studies | |||
| C11-19 | Council on African Studies | |||
| YLr33 | Yale-Wesleyan Southern African Research Program | |||
| A19 | Books published by ARP (A-Z by author) | |||
| YLr35 | Dept. of Engineering & Applied Science | |||
| YLr40 | Dept. of Internal Medicine | |||
| YLr45 | Center for International Human Rights | |||
| YLs | Dept. of Slavic Languages and Literatures | |||
| 10 | Periodicals (A-Z) | |||
| 91 | Council for Russian & East European Studies | |||
| 92 | Connecticut Russian and East European Community Outreach | |||
| 93 | Connecticut Association for the Advancement of Russian and East European Studies | |||
| YLs13 H2 | Dept. of History | |||
| YLs16 C65 | International Society for Eighteenth-Century Studies | |||
| YLsa11 | Institute of Sacred Music | |||
| YLso | Dept. of Sociology | |||
| YLw4 | West Campus | |||
| C3 | Institute for Cancer Biology | |||
| C45 | Cell Biology | |||
| C46 | Chemical Biology | |||
| M54 | Microbial Diversity | |||
| S9 | Systems Biology | |||
| YLw51 | Whitney Humanities Center | |||