Transportation and convict discipline considered : in a letter to the Right Honourable Earl Grey, Her Majesty's principal secretary of state for the colonial department, etc., etc., etc. : showing the evils attendant upon the system pursued in Van Diemen's Land, and the remedy for those evils : with suggestions for the profitable employment of convict labour, and for rendering it a source of wealth and prosperity to the colony and the mother country / - Pocock, Zachary Pearce. (Simmonds and Co.,, 1847)