The principles of penal government recognised in the times of Governor Arthur, may be best ascertained from his despatches and orders, and from the writings of Dr. Ross, who, if not directly assisted by Arthur, was inspired by his opinions. Whether those principles were practically applied, will be known by reference to other testimony. The deviations must not, however, be ascribed exclusively, either to the Governor's connivance, or to the intrinsic defect of his system. He could not act alone, and the agents he employed were sometimes incapable, and sometimes corrupt. In his own writings, he repeatedly alludes to the gradual approximation to what he deemed perfection of detail: it cost him the labor of years. The estimate he formed, philanthropists are slow to entertain: one-third of those who arrived in these colonies, he rated incorrigible; the rest, chiefly affected by the prospect of reward or the dread of punishment, and indifferent to abstract good. In tracing crimes to their causes he largely ascribes them to poverty, and the pressure of classes on each other. He enunciated a novel view of the mental character of criminals--that they were subjects of _delirium_; that they saw every object through a false medium; and that no treatment could be successful which did not restrain them by an enlightened rigour. This view, given in a code of rules[187] for the management of road parties, was attributed to the reasonings of a medical member of his government: the notion it embodies, he himself ascribed to long experience in the management of prisoners. His observation supplied the facts; his councillor, perhaps, constructed the system. He believed that to remove the opportunities of crime, was the only successful method of general prevention; that to keep the convicts quiet, to withdraw all external excitement was essential to successful treatment of their mental malady. He compared the ordinary offender to a steed untrained: very impatient of the curb and rein. The discipline of the government, either by its own officers or the master, he likened to a _breaking in_. Under the first application of the bridle, more facile tempers became at once submissive and docile; or if not--if the man threw the master--then came the government with heavier burdens and more painful restraint: he was caught, and resistance was borne down. The milder servitude being unsuccessful, then came magisterial admonition; then the lash; then sequestration on the roads; then irons; then the penal settlement--with its stern aspect, its ponderous labor, and prompt torture; in which mercy wrought through terror and pain, and hope itself was attired in lighter chains.