whether a projected law which satisfied the condition of being workable would give a balance of advantages over disadvantages.
In connexion with a proposal for the prevention of sweating he would, for instance, take expert advice as to whether its provisions could be enforced; and whether, if enforceable, they would impose added hardships on any class of employees or penalties on any innocent class of employers.
In like manner in connexion with a proposed modification in criminal procedure, the rational reformer would defer to the expert on the question as to whether such modification would secure greater certainty of punishment for the guilty without increasing the risk of convicting the innocent.
In connexion with the second category of evils—the category under which would come those of drinking and betting—the rational legislative reformer would recognise the complete impracticability of abolishing by legis-
