A number of abolitionist missionaries, including Rev. James Peggs, Rev. Howard Malcom, Sir Thomas Fowell Buxton, and William Adams offered commentaries on the Parliamentary debates, and added their own estimates of the numbers effected by, and forms of slavery in South Asia, by region and caste, in the 1830s. In a series of publications that included their: ""India’s Cries to British Humanity, Relative to Infanticide, British Connection with Idolatry, Ghau Murders, Suttee, Slavery, and Colonization in India"", ""Slavery and the slave trade in British India; with notices of the existence of these evils in the islands of Ceylon, Malacca, and Penang, drawn from official documents"", and ""The Law and Custom of Slavery in British India: In a Series of Letters to Thomas Fowell Buxton, Esq"" tables were published detailing the estimates.