NEW moon occurs on May Id. 13h. 16m., U.T., and full moon on May 16d. 02h. 52m. The following conjunctions with the moon take place: May 3d. 02h., Venus 2° N.; May 6d. 05h., Saturn 2° S. ; May 7d. 10h., Mars 2° S. ; May 13d. 01h., Jupiter 3° S. No occupations of stars brighter than mag. 6 take place during the month. Mercury is in superior conjunction with the sun on May 31 and is not well placed for observation throughout the month. Venus is a conspicuous object in the western sky and sets about two hours after the sun during the month. The portion of the illuminated disk visible from the earth varies from 0-93 to 0-86 during May. Mars and Saturn are still visible in the earlier portion of the night, the former setting at midnight on May 31 and the latter about an hour earlier. Jupiter is still favourably placed for observation and does not set until 4h. 07m. and 2h. 10m. at the beginning and end of the month respectively. There is a partial eclipse of the sun on May 30, invisible at Greenwich.