TY - BOOK AU - Clarkson, Thomas TI - Thoughts on the necessity of improving the condition of the slaves in the British colonies, with a view to their ultimate emancipation : and on the practicability, the safety, and the advantages of the latter measure ET - Second edition corrected PB - Printed for the Society for the Mitigation and Gradual Abolition of Slavery throughout the British Dominions and sold by J. Hatchard ...; and J. and A. Arch ... PY - 1823 EP - iv, 57, [3] p. UR - http://ci.nii.ac.jp/ncid/BA85576040 ER -