Ivory Paper.—The Society for the encouragement of Arts, Manufactures and Commerce, in London, have voted thirty guineas to Mr. S. Einsle, for his communication on the use of artists. He produced, before the Committee of his Society several specimens of his ivory paper, about the eighth of an inch, and of superficial dimensions, much larger than the largest ivory: the surface was hard, smooth, and perfectly even. On trial of these, by some of the artists, members of the society, it appears that colours may be washed off the ivory paper more completely than from ivory itself, and that the process may be repeated three or four times on the same surface, without rubbing up the grain of the paper. It will also, with proper care, bear to be scraped with the edge of a knife, without becoming rough.
Vegetable Antidotes to Poison.—Dr. Chisholm in a paper read to the Society at Geneva, states, that the juice of the sugar cane is the best antidote known for arsenic. It has been tried upon various animals in the West Indies with complete success.
The American Academy of Languages and Belles Lettres, at New York, has offered a premium of not less than 400 dollars and a Gold Medal, to the author, being an American Citizen, who, within two years, shall produce the best written history of the United States, calculated for a Class Book.
Increase of Population in America.—In 1810, the population of the United States was 7,323,903. By the recent official report of the secretary of the treasury, it appears that our population progresses in the ratio of 34 per cent, in ten years. Proceeding on this basis, for the next 80 years, which will terminate this century, we shall find the following result.
| In 1820 | 9,827,265 | Inhabitants. |
| 30 | 13,168,534 | |
| 40 | 17,545,844 | |
| 50 | 23,644,433 | |
| 60 | 31,584,633 | |
| 70 | 42,325,903 | |
| 80 | 56,716,716 | |
| 90 | 76,000,399 | |
| 1900 | 101,840,534. |
Such a review as this ought to produce a salutary influence on all the busy actors who now figure on the American theatre.
The probability is, that not one mortal now in being, of mature age, will be seen on the face of the earth in eighty years; although many of our youth will reach that proud era of American glory. What a solemn responsibility devolves on all the conspicuous actors of the present day, since this generation is destined to influence the happiness of one hundred millions of free born Americans in the short span of 80 years! This reflection offers to the contemplative mind, an extensive range.
Drought.—A letter, from a gentleman in Virginia, says that the drought has been greater there the last summer, than has been known for many years: on inquiry respecting its extent, he was informed by a facetious old farmer, that "he had to drive his stock thirty miles to water, but the worst of all was, he had to cross a river, in his way, and pay the ferryage."
Square Miles of the States.—In Vermont, the number of