Primo, the online catalog, is used to request library materials. Primo connects to your library account and allows you to:
The library's online catalog indicates whether a publication is shelved in Closed Stacks or Open Stacks. Below are instructions on obtaining these items.
NOTE: With such an extensive collection, some LHL holdings may not be completed catalogued. There are also materials that are designated as "In Library use only". These include engineering societies meeting papers, aerospace papers, government documents, technical reports, and standards and specifications.
Consult with the Reference staff for assistance making requests or to locate materials not listed in the online catalog.
The majority of the LHL collection is in Closed Stacks. This area is not accessible to the public; items must be requested via the online catalog:
You will get an email when the item is available at the Reference Desk. Turnaround time is usually 10-15 minutes. If a request cannot be filled, you'll be notified via email.
Patrons with a Primo account can request scanned copies of certain materials:
The scanned document(s) are saved to a secure server. You will get an email when the item is available to be downloaded. Turnaround time for most requests is 24-48 hours. If a request cannot be filled, you'll be notified via email.
Registered patrons are allowed a limited number of requests at no charge.
Open Stacks items are generally published after 1980. They are shelved on the 2nd Floor, which is open to the public. As such, they cannot be requested for retrieval in the online catalog; patrons can pull these items themselves.
Linda Hall uses the Library of Congress classification system to assign call numbers by subject, focusing on materials in the Q (Science) and T(Technology) class schedules. A printed copy of the LC classification system is available at Reference Desk, for your information.
A map is provided to help navigating the Open Stacks area.
The Themed Collections section in Primo are LHL materials organized around a subject, event or format. Included are electronic versions of:
Themed Collections also includes items that may not be eligible for total digitization due to publisher restrictions or U.S. Copyright Law. They can be requested for in-library use; for partial digitization, or through interlibrary loan through the Digital Initiatives Unit.
A Reference Specialist is available during library hours, Monday through Friday from 10:00 a.m. to 5:00 p.m. CST.
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