Due to budget cuts, the Library ended its previous subscription to this resource. Access has been restored through a purchase of JSTOR content by the California Digital Library.
From the JSTOR site: “Throughout the 19th century, pamphlets were an important means of public debate, covering the key political, social, technological, and environmental issues of their day. 19th Century British Pamphlets, created by Research Libraries UK (RLUK), contains the most significant British pamphlets from the 19th century held in research libraries in the United Kingdom.”
More than 26,000 pamphlets from seven major UK research institutions are searchable and browsable in JSTOR.
Bristol Selected Pamphlets 1800-1899
Cowen Tracts 1603-1898
Earl Grey Pamphlets Collection 1800-1900
Foreign and Commonwealth Office Collection 1545-1900
Hume Tracts 1769-1890
Knowsley Pamphlet Collection 1792-1868
LSE Selected Pamphlets 1800-1899
Manchester Selected Pamphlets 1799-1900
Wilson Anti-Slavery Collection
I recommend reading the guides provided by the project, which describe more fully the content of the collections and how to search them. The guides also point out that the pamphlets don’t only reveal contemporary viewpoints, they contain statistics, illustrations, maps, and other evidence that would inform your research. Because pamphlets were sometimes published in response to another publication putting forward an opposing viewpoint, tracking them can provide insight into public debates.