“ In this case the supreme judicial court of the state holds the legislation valid, and that there is a fair reason for the discrimination between the height of buildings in the residential as compared with the commercial districts. That court has also held that regulations in regard to the height of buildings, and in regard to their mode of construction in cities, made by legislative enactments for the safety, comfort, or convenience of the people, and for the benefit of property owners generally, are valid. ”

“ In relation to the discrimination or classification made between the commercial and the residential portion of the city, the state court holds in this case that there is reasonable ground therefor, in the very great value of the land and the demand for space in those parts of Boston where a greater number of buildings are used for the purposes of business or commercially than where the buildings are situated in the residential portion of the city, and where no such reasons exist for high buildings. ”

“ Stating his objections more in detail, the plaintiff in error contends that the purposes of the acts are not such as justify the exercise of what is termed the police power, because, in fact, their real purpose was of an esthetic nature, designed purely to preserve architectural symmetry and regular sky lines, and that such power cannot be exercised for such a purpose. ”