kinds of home work, and all artisans, whether men or women, could have been driven into factories at the dictation of factory owners or trade-unions having sufficient political influence to secure the necessary legislation. I digress here a moment to point out that people urging particular enactments too often overlook the effect of disregarding a principle and establishing a precedent. Constitutions declare general rules or principles of justice, which sometimes do not coincide with the justice of particular cases. The framing of general rules of conduct so as to bring about practical justice in the greatest number of cases and with the fewest exceptions, constitutes the science of jurisprudence, of which constitution-making is but a branch, and the application of these general rules to practical affairs is the duty of legislatures and courts. The statutes before the courts are frequently recognized and conceded to be only entering wedges and experiments, and, if sustained, are certain to be followed by others far broader and more radical. If legislative power exists to regulate a subject, the extent or degree of its exercise is essentially for the legislature to determine in its discretion and cannot be controlled by the courts. Hence, a court must always consider, in determining the constitutionality of a statute, not merely the features of the particular statute before it and not merely the justice or merits of the particular case as between man and man or between the state and the individual, but what might be done under the same principle if the statute before it were upheld and a precedent established. Thus, if we once grant the power of a legislature to prohibit work at home under sanitary conditions in one trade, then every trade becomes subject to the same power of regulation and prohibition, and all working men and women can be driven into crowded factories.