stellation, being above and less than two degrees from it. To see her, however, we must have a good horizon between west and west-by-north, The Moon passes her on the 11th.

Jupiter is on the meridian about three quarters past two in the morning of the 3d; at two on the 15th; and at one on the 27th. His latitude, on the 1st, is one degree twenty-six minutes south, in the twenty-third degree of the twelfth sign (*); and it increases nearly seven minutes, his motion being retrograde through about three degrees. He is seen, when on the meridian, under the four stars in square, but nearest to the line passing through the two eastern of them; and, at the end of the month, he is nearly equidistant from this line and that drawn through the two western of these stars. The Moon passes him on the 25th.

Saturn is on the meridian about half an hour before Sun-rise on the 1st, and about three in the morning on the 19th. His latitude, on the 1st, is two degrees thirty-three minutes south, in the fourteenth degree of the first sign (T); and it increases about eight minutes, his motion being

retrograde through little more than a degree. He is seen, therefore, near the same spot, under (E) the fourteenth of the Fishes, and nearly in a line with the highest and lowest of the four stars in square. The Moon passes him on the 26th.

Herschel is on the meridian at fifty-two mi nutes past eight at night on the 1st, and at half past seven on the 23d. His latitude is about twelve minutes south, in the twenty-sixth degree of the ninth sign (†); and it remains nearly the same, his motion being retrograde through less than half a degree. He has, when on the meridian, (u) the twelfth of the Archer above him to the east, and (0) the eighth of the Serpentbearer below him to the west, being nearly in the middle between these stars. The Moon passes him on the 19th.

The Sun's apparent diameter, on the 2d, is thirty-one minutes thirty-five seconds; and on the 19th, thirty-one minutes forty-one seconds. The Moon's apparent diameter, on the 1st at midnight, is thirty-one minutes and a half; and it decreases to the 11th, during which day it is about twenty-nine minutes twenty-eight seconds.

H

It then increases to the 24th, when it is, at noon, thirty-three minutes twenty-eight seconds; and it afterwards decreases to the end of the month, being, on the last midnight, thirty minutes forty seconds. The Sun enters the sixth sign (m) on the 23d, at fifty-four minutes past five in the morning.

For the position of the fixed stars at any hour of the night, consult the volume for 1806, according to the following Table :

SEPTEMBER, 1820.

AN eclipse of the Sun was formerly an object of terrour to the inhabitants of the Earth, and history records remarkable results from them, such as the stopping of a battle, the defeat of an expedition, and the advantage taken of an ignorant population by the prediction of them. It is now viewed with admiration by the common observer, and employed in the promotion of science by those, who are farther advanced in knowledge. The former party may be made useful by a little attention to a few circumstances, and the latter are called upon to observe them with a greater degree of precision.

The first thing is to be prepared with easy means to observe this phoenomenon to advantage; and Dr. Maskelyne has given us such plain directions upon this subject, that I cannot do better than quote his own words.

"Dark glasses should be used to defend the eye from the intensity of the Sun's light. Transparent glasses, smoked over the flame of a candle or lamp, will give a more distinct and agreeable vision of the disc of the Sun than any tinged or coloured glasses will do. Provide two pieces of glass of convenient length, not too thick (the common crown glass, used for windows, will do as well as any), wipe them clean. and dry. Warm them a little by the fire, if the weather be cold, to prevent their cracking when applied to the flame of the candle: then draw one of them gently, according to its whole length, through the flame, and part of the smoke will adhere to the glass. Repeat the same operation, only leaving a little part at one end now untouched. Repeat the operation, leaving a further part at the same end untouched; and so each time leave a further part of the same end untouched, till at last you have tinged the glass with several dyes, increasing gradually in blackness from one end to the other. Smoke the other glass in like manner; and apply the two glasses one against the other, only separated by a rectangular border, cut of brass or card paper, the smoked faces being opposed to each other, and the deepest tinges of both placed together at the