“For some time there were very few lunatics in the colony, but it is a curious fact that lunacy followed the discovery of gold in this and the neighboring colonies. This applies particularly to the West Coast. “Numbers of cases arise from exposure in the bush, the privations consequent upon travelling in hitherto unexplored country, and from the common cause – drunkenness. “Among the men a common cause of insanity is found to be injuries to the head. Sometimes years may elapse from the time the injury is received until insanity shows itself. These cases are generally permanent, but no effort should be neglected that may tend to a restoration of reason.