is there a branch where the research is done?
Schomburg Center for Research and Black Culture and New York Public Library for the Performing Arts.
New York Public Library
The NYPL's two other research libraries are the Schomburg Center for Research and Black Culture, located at 135th Street and Lenox Avenue in Harlem, and the New York Public Library for the Performing Arts, located at Lincoln Center. 
how does article i protect individual rights from infringement by congress by the states UNANSWERABLE what does the bill of rights convey ? The first ten amendments to the United States Constitution. was there a public  display of the bill anywhere? Yes, in the New York Public Library. who founded it? UNANSWERABLE
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New York Public Library [SEP] Other research branches
Total item holdings, including the collections of the Branch Libraries, are . The Humanities and Social Sciences Library on 42nd Street is still the heart of the NYPL's research library system. The SIBL, with approximately volumes and 60,000 periodicals, is the nation's largest public library devoted solely to science and business. The NYPL's two other research libraries are the Schomburg Center for Research and Black Culture, located at 135th Street and Lenox Avenue in Harlem, and the New York Public Library for the Performing Arts, located at Lincoln Center. In addition to their reference collections, the Library for the Performing Arts and the SIBL also have circulating components that are administered as ordinary branch libraries.