Shortly after the close of the Revolutionary struggle, we think about the year 1785, the late Robert Hewes, a well-known citizen of Boston, made, probably, the first attempt to establish a window-glass manufactory on this continent. This manufactory was modelled upon the German system. Mr. Hewes carried his works to the fuel, and erected his factory in the then forest of New Hampshire. The writer well remembers, when a boy, hearing Mr. Hewes relate, that when building his glass-works the tracks of bears were frequently seen in the morning in and around his works. From the best information in our possession, we think that to Mr. Robert Hewes must be conceded the first attempt to establish window-glass making in the United States, or in the western world. The aim of Mr. Hewes was doubtless to supply the most important and necessary article made of glass, and called for by the immediate wants of the people, viz., window-glass. It ended, however, in disappointment to the projector, probably from the frequent error of carrying such works into the interior, to the vicinity of fuel, or from lack of skill on the part of the workmen. This attempt was followed, about the year 1787, by Messrs. Whalley, Hunnewell, and their associates, and by the workmen Plumback and Cooper, who erected a large factory in Essex Street, Boston (where Edinboro' Street now is), for the purpose of making the Crown Window Glass. This was without success, until a German, of the name of Lint, arrived in the year 1803, and from this period there was great success in the manufacture, for the State of Massachusetts, to encourage the manufacture of window-glass, paid the proprietors a bounty on every table of glass made by them. This was done to counteract the effect of the bounty paid by England on the exportation of glass from that kingdom. The State bounty had the effect to encourage the proprietors and sustain their efforts, so that by perseverance many difficulties were overcome, and a well-earned reputation supported for the strength and clearness of their glass; a glass superior to the imported, and well known throughout the United States as "Boston Window-Glass." This reputation they steadily sustained, until they made glass in their new works at South Boston, in the year 1822. Their charter from the State was highly favorable to the stockholders; among the privileges it granted an exclusive right to manufacture for fifteen years, and to manufacture glass without their consent subjected the offender to a fine of five hundred dollars for each offence. Their capital was exempt from taxation for five years, and the workmen exempted from military duty. From the founding of this establishment may be dated the founding of all the Crown and Cylinder, Window and Flint Glass-Works in the Atlantic States. Indeed, this may be considered the fruitful parent tree of the many branches now so widely spread abroad.