Primary source materials related to the British world of the long eighteenth century can be found in nearly every special collections repository at Yale as well as in general collections. Holdings may be identified in Orbis, the finding aids database, and printed lists and catalogues held locally. Some have digitized material from their collections. See each collection's web site for more details and contact information.
Here is a selection of the Subject Guides created by Yale librarians to help you use library resources. These are about topics relevant to the study of some aspect of Britain in the long eighteenth century.
Below are links to some projects, colloquia, and working groups at Yale focusing on Britain and/or the eighteenth century. see also Special Collections at Yale with British Eighteenth-Century Holdings