Bijnan Rahasya
Bijnan Rahasya was a collection of essays concerning the physical and astronomical sciences first published in book form in 1875. All articles were taken from Bangodarshan - and they demonstrate the appropriateness and applicability of Bengali language to describe matters scientific. That probably was his main pupose. Tagore emphasised this point quite succintly.
Acknowledgement:
Much of the materials for this article was sourced from the Bankim Rachanabali (Complete Works of Bankim Chandra), Tuli-Kalam, Calcutta 1986