[1] Later after many discussions on Christianity and Indian thoughts on God, he found himself unable to resolve the doubts on Jesus Doctrines and logically felt defeated.

There he met abolitionists and his background qualified him to be sent by the Americans as their representative to the anti-slavery meeting in London of the British India Society.

[1] Boston East Indian merchants were so impressed by his linguistic skills that they arranged for his to be made a Professor of Oriental Linguistics at Harvard University,[3] but by 1840 he was publishing public letters to Thomas Fowell Buxton warning of British complacency of assuming that because the West Indies no longer had slavery it did not mean that the British Empire had renounced slavery whilst India was unchanged.

[4] In 1840, Adam was sent with a large number of other Americans to the World's Anti-Slavery Convention in London, where he presented a paper about India.

Adam had arrived late due to a shipping delay with William Lloyd Garrison, Charles Lenox Remond and Nathaniel Peabody Rogers to hear that the female delegates had been excluded from the main proceedings.

"[3] He resigned his professorship at Harvard so he could stay in London for over a year whilst he edited the British Indian Advocate for the British India society[3] before he decided to join, and invest in, an experimental society named the Northampton Association of Education and Industry in Massachusetts.