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materials of enjoyment and improvement The use of tools and machinery so much adds to the power of man, and distinguishes him so strikingly from other animals, that Aristotle 2OOC years ago, deslg- hated man in distinction from brutes, as tool-nla- hng animal. We arc to attribute to the advance ment of the mechanical arts, most of the new com forts and means of happiness which have been pla- ced at every mans door within the lapse ot but few ears We can gain some adequate idea of the additions which the Improvements III the arts nave made to our external means of enjoyment, Ii we com pare the comforts and conveniences of life 2O 3O, or 40 years ago, with those now possess and the farther we extend our view back, the more strong will the contrast appear. For example, compare the awkward and cumbersome furniture of our ia thcrs, with the same articles at the present day chairs, tables, &c. One fthe most striking exam ples of the advancement of the arts is seen in the improvement of printing and paper-making. Com pare our newspapers and books with those which were printed 40 or 50 years ago. While they are vastly better, they are cheaper also.

 Our comforts are constantly multiplying and lm- proving, and the expense and labor which are re- quired to obtam them, are constantly diminishing. Euey improvement ill the arts, however slight, adds to the stock of human happiness, and many man who dreams not that his influence extends beyond his own neig ghborhood or town, by successful eX- ercise Of his skill, becoming the author of some inn provement in his art, ministers in some degree to the permanent enjoyment of millions of his fellow men, This is true even or the smaller improve ments which appearing from day to day, but 1t is emphatcally true of those great inventions, whose results are astonishing the world.

 Some of them have added to human comfort and happiness, and we may say improvement too, thro' out the whole civilized world. Take, for instance, the invention of the Spinning Jenney. Till as late as the gear }7G7, (G9 years ago) spinning was done entirely on tie common domestic one-tlgead wheel, ard of course cotton manufactures were compara- hve,y nothing. In the year 1sG7, William liar greaves, 6 weaver, invented a spinning jenney, and a new impulse was gwen to these manufactures. A few years after, Richard Arkwrght introduced his improvement which was so essential that the whole invention is conlAony attributed to him. This in vention, consigning the domestic wheels to the gar ret has been of the greatest sources of national wealth and prosperity which Great Bstain has pos sessol. The same may be sad of other inventions

 of printing, railroads, the various applications of soal., Sc. We shall prosecute this subj ect farther in future stage of our Investigation.