PHILADELPHIA COMMERCIAL MUSEUM, Thirty-fourth Street below Spruce, organized, 1894, is the only Commercial Museum in the United States; it received immense collections from the Chicago “Columbian Exposition,” over forty governments being represented; many subsequent collections from other international expositions; and special exhibits, illustrating the people and products of the world. A free reference library is here, of Foreign and American Commerce and Travel, which could not be duplicated, and courses of free lectures are given which cover subjects of geographic, commercial, and industrial importance, illustrated by colored lantern slides and motion pictures; colored slides, with lantern screen and type-written lectures, covering same field of geography, commerce, and industry, are loaned, free of cost, to public-school teachers, in all parts of Pennsylvania; they reach tens of thousands; also collections of specimens, to aid teachers, are sent free of cost, as a gift to Pennsylvania public schools; they are arranged, showing important raw material, and process of manufacture. Manufacturers are furnished with information on all matters pertaining to foreign trade; the Foreign Trade Bureau is the acknowledged leader of such organizations in the world. THE PENNSYLVANIA HORTICULTURAL SOCIETY, 1600 Walnut Street; first in America, organized at meeting in Franklin Institute, 1827, to promote horticulture and create love for flowers, fruits, and vegetables by their cultivation. Minutes of the Society and list of membership is complete from formation to present time. Lectures by an expert in the various branches of horticulture are given at each monthly meeting, from November until May. Annual exhibitions are, Spring Flower Show before Easter, three days; Peony, outdoor grown Rose and Sweet Pea Show in Philadelphia suburbs, from May to July, according to season; Dahlia Exhibition, in September; Chrysanthemum, early November. The Society has a library of several thousand books on agriculture and horticulture, some very rare and of great value, and all recommended works, of recent publication, in Europe and America. “Great gardens educate people in gentility as well as in horticulture.” WAGNER INSTITUTE, southwest corner of Seventeenth Street and Montgomery Avenue; founded by Professor William Wagner, 1847. Circulating and reference library open daily except Sunday, 9.00 A.M. to 9.00 P.M. Museum collections, chiefly in reference to geology and mineralogy, open Wednesday and Saturday afternoons. Courses of lectures conducted through the collegiate year. LIBRARIES