In order to campaign as actively as he did, Bradlaugh had to research the subjects he was to campaign on. The research papers retained and published here cover issues with a clear correlation to Bradlaugh's Parliamentary work. With regard to workers' rights and health he collected several papers on the effects of restricted markets on food distribution, alongside papers on the Eight Hours question, employers' liability, and the effects of large housing estates on residents' health. Papers relating to India feature both before and, due to Bonner's preservation of them, after Bradlaugh's death; those before his death are concerned with the condition of India under imperial rule, the statement after his death testifies to the Indian National Congress' appreciation of Bradlaugh's efforts to help India. Research into the practice of oath taking and other state-enforced forms of worship is also included.