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Glass plate negatives

 Subject
Subject Source: Art & Architecture Thesaurus
Scope Note: Sheets of glass coated with light-sensitive emulsion that have been exposed and developed, and that are intended as matrices for the creation of positive photographic prints on another support.

Found in 1 Collection or Record:

L. Vernon Briggs papers

Collection Identifier: H MS c162
Overview: The collection reflects the professional work and the personal interests of psychiatrist and reformer Lloyd Vernon Briggs. As well as being a practicing psychiatrist, Briggs was an advocate for the reform of the asylum system in Massachusetts. He worked on reforms of the procedures for the committal of patients and the confinement of those suspected to be mentally ill, and he advocated requiring formal training for both attending physicians and attendants in psychiatric institutions. Briggs was...