of Encke and Walker with the Trevandrum and Portland This fourth no-fact, or paradox, then, must have arisen fro data; the errors are not in the calculations, for Mr. Walker's l computation is undoubtedly a correct deduction from his His labored guess at the cause of the want of identity of point and the centre of gravity amounts to a full admission and herein lies its principal value. I am persuaded, fro the table of comparison, and reflecting upon the magnitude character of the head of the comet, that the normal places depended upon to their asserted accuracy of 6 or 10 seconds are liable to an error of nearly or quite 20 seconds. The orbit from an ellipse to a hyperbola by collision with the involved in Mr. Walker's fifth fact, is necessarily rejected wi of collision; but even if the collision had occurred, there bility in such a change, which is set forth by Professor An remark, that it involves a change in the character of the "from a less velocity to one of greater."

The identity of this comet with that of 1668 seems to b the best astronomers, although serious doubts are thrown calculations of Henderson. The French astronomers think, identical with the comets of 1106, 1493, 1702, and some which correspond to a period of 35.1 years. Mr. Walker thin with the comet of 1689, as well as that of 1668, and 1493, an other comets, which would give it a period of 21% yea thinks, that it is identical with all these comets, and give of 7 years. Capocci's period may be rejected without h the arguments in favor of the other short periods, derived f returns, are quite insufficient; but the present limits will my entering upon so extensive a discussion. The period which includes the comets of 1493 and 1668, is better sus the observations, except that at Conception, than either of periods.

The comparison of the Conception observation with Mr. C to a velocity of the comet less even than that which would c the orbit of 21% years. My first orbit of 21% years, which probable orbit of this period, that can be deduced from all observation, does not satisfy it, nor does it satisfy the oth nearly so well as the orbit of 175 years. The second o is the most probable orbit which satisfies the observ but is quite inconsistent with the later observati observation, therefore, if it was made with ar which might be expected from Captain Ray, in the nature of the forces to which the co perihelion passage.

UNITED STATES.

1. EXECUTIVE GOVERNMENT.

The 14th Presidential term of four years, since the establishment of the government of the United States, under the Constitution, began on the 4th of March, 1841; and it will expire on the 3d of March, 1845.

JOHN TYLER, of Virginia,
Vacancy,

President,
Vice President.

Salary. $25,000

5,000

General William Henry Harrison, of Ohio, having been elected by a majority of 174 of the electoral votes, was, on the 4th of March, 1841, inaugurated President of the United States, in the city of Washington, and died on the 4th of the succeeding April. In consequence of this event, the duties of the office have devolved on John Tyler, of Virginia, who had been elected by the same majority Vice-President; in accordance with the provision of the Constitution of the United States, which says: "In case of the removal of the President from office, or of his death, resignation, or inability to discharge the powers and duties of said office, the same shall devolve on the Vice President."

THE CABINET.

The following are the principal officers in the executive department of the government, who form the Cabinet, and who hold their offices at the will of the President.