The mid-day shadows lengthening northward indicate to us northern folks
that “Old Sol” has departed on his annual southern tour. He now cuts off
the day at both ends, on the 1st rising 25 minutes later and setting 20
minutes earlier than on the 1st of July. His change in declination since
June 20th, beginning of summer, till August 31st, will be a little over
15°, and the decrease in the length of the day for the same time, will be
a trifle less than two hours. He will come to the meridian on the 1st,
at six minutes and two seconds after 12:00; on the 15th at four minutes
and eight seconds after 12:00; and on the 30th at sixteen seconds after
12:00. On the same dates he will rise at 4:58, 5:11, and 5:26 a. m., and
set at 7:14, 6:57, and 6:35 p. m. Daybreak will occur at 3:05, 3:23, and
3:44 a. m., and twilight will end at 9:07, 8:45, and 8:16 p. m. Greatest
elevation in latitude 41° 30′ will be 66° 18⅔′.