It is, therefore, needless to say that we welcome with pleasure the plan of An Institute of Technology, which it is proposed to establish in Boston, and which, to judge from its excellently well prepared prospectus, will fully meet, in every particular, all the requirements which we have laid down as essential to a perfect Polytechnic Institute. Indeed, the wide scope of this plan, its capacity for embracing every subject in the range of science, and of communicating it to the public either by publication, by free lectures, by a museum of reference, or by collegiate instruction, leaves but little to be desired. That there is great need of such an institution in this State is apparent from many causes. In the words of the prospectus, we feel that in New-England, and especially in our own Commonwealth, the time has arrived when, as we believe, the interests of Commerce and Arts, as well as General Education, call for the most earnest cooperation of intelligent culture with industrial pursuits. It is no exaggeration to state that probably no project was ever before presented to the wealthy men of Massachusetts which appealed so earnestly to their aid or gave such fair promise of doing good. The institute in question is one which will in every respect, socially and mentally, elevate the business man or practical man to a level with the college graduate or the practitioner in the three learned professions. It will stimulate progress by still further refining industry, and ally the action of capital to the advance of intellect. It will perform a noble and distinguished part in the great mission of the age and of future ages--that of vindicating the dignity of free labor and showing that the humblest work may be rendered high-toned and raised to a level with the calling of scholar or diplomatist through the influence of science. If we were called on to set forth the noble spirit of the _North_ with all its free labor and all its glorious tendencies, we should, with whole heart and soul, choose this magnificent conception of an institute whose aim is to confer dignity on what the wretched and ignorant slaveocracy believe is cursed into everlasting vulgarity. It is fitting that this practical and eminently intelligent and progressive community should build up, on a grand scale, an institution which will be not only eminently useful and profitable, but serve as a culminating exponent of the great and liberal ideas for which the North has already made in every form the most remarkable sacrifices.