196 Mass. 309. It was held there that the intention of the Legislature as manifested by the act was to include only pupils of the public schools required by R. L. c. 42, §§ 1 and 2, for the education of children and youth, and in private schools of a like kind, and to exclude pupils of industrial and evening schools, and other private and public schools. The present act includes by express words those who attend industrial and evening schools maintained by the public.
The constitutionality of the statute is concluded by these decisions so far as objections rest on a denial of equal protection of the laws to the defendant because of exemption of the Boston Elevated Railway Company from the requirement of the statute, and on a denial of equal protection of the laws to members of the travelling public .not included in its provisions. The circumstance that a larger number of persons are now within the scope of the statute makes no material difference. The class now as before is confined to those who are attending institutions for education chiefly provided at public expense. The factors of youth and size of pupils and hours of travel being when other travel was lighter, and probability of far greater travel at the less rate because of the financial limitations of scholars in schools were alluded to in 187 Mass. at 440, but they were not treated as determinative. The pivotal consideration was whether the grouping of pupils in schools as a class entitled to special consideration in matter of fares was reasonable or arbitrary, and that was decided in favor of the statute. The other considerations are not rendered inapplicable because by reason of the greater age of some who go to industrial schools the proportion of children in the favored class may be less.
The defendant has complied with the earlier fare statutes. But this complaint relates to a refusal, contrary to the requirement of the statute, to sell tickets to a boy fifteen years old, who was a pupil pursuing the regular course in mechanic arts in a public industrial school in Lawrence.
The statute does not impair, in contravention of art. 1, § 10 of the Constitution of the United States, the obligation of the contract set forth in the charter of the Lynn and Boston Railroad Company (St. 1859, c. 202, §-4), to which it is said that the defendant has succeeded. That charter when granted was liable by