supposition that the sun was moving toward the constellation _Hercules_. Later investigations not only established the fact that the sun moved, but that it was moving nearly toward the star _Rho_, in _Hercules_, and Struve estimated its motion at about five miles per second; though Professor Airy places it at about twenty-seven miles per second. It is also highly probable that its motion is not in a straight line, but in obedience to the same laws that govern the motions of its own satellites, it with other suns revolves about a center located nearly in the plane of the Milky Way, and with an orbit so great “that ages may elapse before it will be possible to detect any change in the direction of its motion.” Meantime, finite beings are interested in knowing how its light and heat affect their interests, and how these qualities may be made most profitable to mankind. For ourselves, we must at present be content to know that on the 1st our sun has reached a point 4° 48′ north of the equator, and that by the 30th he will be 14° 58′ north, an increase in northern declination of 10° 10′, and, as a consequence, our daylight will be increased about one hour and thirteen minutes, and the time “from early dawn to dewy” twilight will be seventeen hours and thirty-five minutes. On the 1st sunrise occurs at 5:43 a. m., sunset, 6:24 p. m.; on the 16th, sunrise, 5:19, sunset, 6:40; on the 30th, sunrise, 4:59, sunset, 6:54. THE MOON. The phases for the month are as follows: Last quarter, 7th, at 9:34 a. m.; new moon, 15th, at 12:43 a. m.; first quarter, 21st, at 6:12 p. m.; full moon, 29th, at 1:06 a. m. Rises on the 1st, at 8:38 p. m.; sets on the 16th, at 8:28 p. m.; rises on the 30th, at 8:21 p. m. In latitude 41° 30′ north, least elevation on the 6th, and equals 30° 20′; greatest elevation on the 19th, equals 66° 44′ 29″. MERCURY Will be an evening star during the month; it will have a direct motion of 12° 25′ 59″ up to the 17th, after which, to the end of the month, a retrograde motion of 5° 22′ 11″. On the 8th, at 2:00 a. m., will be at its greatest eastern elongation (19° 26′); on the 16th, at 11:55 a. m., will be 6° 21′ south of the moon; on the 17th, at 5:00 a. m., will be stationary; on 27th, at 10:00 p. m., will be in inferior conjunction with the sun—that is, will be between the earth and sun; and next day, at 1:00 p. m., will be 1° 42′ north of Venus. A few days before and after the 8th may be seen as a pale, light star, near the western horizon. Its times of rising and setting are as follows: On the 1st, rises at 6:21 a. m., sets at 7:51 p. m.; on the 16th, rises at 5:50 a. m., sets at 8:00 p. m.; on 30th, rises at 4:53 a. m., sets at 6:29 p. m. Diameter increases from 6.4″ to 11.8″. VENUS,