True Apparent Places of Thirty-seven of the Principal Fixed Stars, for every tenth day of the year.

Epoch. The Upper Culmination at Greenwich.

True Apparent Places of Thirty-seven of the Principal Fixed Stars, for every tenth day of the year.

Epoch. The Upper Culmination at Greenwich.

Dr. Young's Refractions, the Barometer being at 30 inches, and the internal Thermometer at 50, or the external at 47, degrees; with the corrections for one inch in the barometer, and for

one degree in the ther

mometer of Fahrenheit. From page 19 of Vol. 1st of Pearson's Practical

The correction for an increase of altitude of one inch in the barometer, or for a depression of one degree in the thermometer, is to be added to the tabular refraction; but when the barometer is lower than 30 inches, or the thermometer higher than 47 degrees, the correction becomes subtractive.

When great accuracy is required, 0,003 inch should be deducted from the observed height of the barometer, for each degree that the thermometer near it is above 50 degrees, and the same quantity added for an equal depression.

Logarithm for converting Sidereal into Mean Solar Time +9.9988126 Mean Solar into Sidereal Time + 0,0011874

A second of Time, at the Equator, contains 1521 feet.

75

2.23

2.25 2.23

8585

-1° Fa.

1844.

II. METEOROLOGICAL INFORMATION.

I. METEOROLOGICAL TABLES FOR SACO, ME.
Lat. 43° 31' N., Long. 70° 26' W.

29.979 29.958 29.966 29.968 67.3 70.3 70.3 69.3 63.3 75.2 64.2 61.0 65.9
29.979 29.966 29.97529.973 61.7 68.4 68.2 66.1 62.2 74.4 61.5 59.4 64.4
30.106 30.093 30.091 30.097 62.4
30.045 30.02730.066 30.046 58.3
29.962 29.894 29.975 29.944 50.2
29.923 29.987 29.953 29.954 56.3

65.6 65.3 64.4 54.8 69.3 57.8 53.3 59.8 63.1 63.0 61.5 43.9 53.9 46.7 43.3 47.0 56.7 54.4 53.8 29.6 39.8 32.2 32.5 33.5 62.3 59.3 59.3 19.1 28.7 23.9 22.8 23.6 30.016 30.016 30.041 30.024 53.7 58.8 59.7 57.4 17.8 28.7 20.7 19.4 21.7 30.019 30.047 30.040 30.035 56.7 63.1 61.0 60.3 15.4 28.6 19.9 17.6 20.1 30.021 30.01730.046 30.028 57.7 62.9 61.2 60.6 26.3 38.8 30.7 28.3 31.0 30.035 30.029 30.020 30.028 58.8 63.8 62.1 61.6 37.0 47.7 38.6 37.1 40.1 30.063 29.995 29.992 30.017 59.5 63.2 63.7 62.1 51.7 64.1 51.0 48.5 53.8 30.009 29.988 30.028 30.008 65.5 69.2 68.2 67.6 64.5 74.9 65.2 61.8 66.6 30.013 30.001 30.016 30.010 59.0 63.9 63.0 62.0 40.5 52.0 42.7 40.4 43.9