Taking the mean of the determinations of the corrections of the chronometer, the following table shows the corrections and the adopted rates of the chronometers used at Colorado Springs and Salt Lake City:

Signals for Determination of Longitude between Salt Lake City, Utah, and Colorado Springs, Colorado Territory.

Date.

1873. July 29

Date.

1873. July 30

59.87

9 10.16

10

48

20.19

30.19

40.20

50.18

Colorado Springs
chronometer.

h. m.

S.

18 47 22.40

32.00

49

Salt Lake.

41.97

51.88

2.00 12.00

21.98

32.00

42.00

52.00

2.00

12.49

22.00

Arbitrary signals sent from

Salt Lake chronom-
eter.

30.70

40.85

50.63

30 0.53

II. 18 20.09 32.10 40.70

0.17 10.40 20.20

50.98

30.20

31 0.20

Mean. 18 9 0.108 Mean. 9 23 24.949 Mean. IS 15 5.098 Mean. 9 29 30.169

32.00

42.38

52.41

50 2.50
12.40
22.59

Salt Lake chronom-
eter.

S.

I 46.37
56.00

2 5.97
15.89

26.00

36.02

46.00

Arbitrary signals sent from

56.00

3 6.00

16.00

26.00

36.47

46.10

Colorado Springs.

56.00

4 6.38

Colorado Springs
chronometer.

16.43

26.48

h. m. S.

18 13 30.52

40.52
55.10

14 5.62
15.96

36.41

46.60

25.53

35.56

45.43

55.57

15 5.60

15.75

25.55

35.48

46.10

55.00

16 7.00

15.60

25.88

35.10

Colorado Springs
chronometer.

Colorado Springs.

h. m.

8.

18 58 45.11
55-54
59 5.54
15.61

39.94

49.93

59.94

15 9.90

20.93

29.90

41.00 49.98

59.90 16 9.95

Mean. 18 48 52.158 Mean. 10 3 16.164 Mean. 19 o 15.656 Mean. 10 14 40.008

25.57

35.60

45.51

55.50

19 O 5.50

15.58 25.60

Salt Lake chronom-
eter.

35.59

45.53

56.60

h. m.

S.

9 27 55.60
28 5.60
20.15

I 5.59
16.67

25.66

35.57 45.60

30.70

41.03

50.60

29 0.62
10.50

20.65

Salt Lake chronom-
eter.

h. m.

S.

10 13 9.48

19.90

29.90

40.00
49.92

59.94

14 9.90

19.88

29.86

Date.

1873. Aug. 6

Signals for Determination of Longitude, &c.-Continued.

July 30, the breaks for the seconds of Salt Lake and Colorado Springs coincide. By measuring the differences where I find the full minute, I develop the fact that the Colorado Springs chronometer breaks 0.110 later than the Salt Lake break; therefore the mean of the signals sent from Salt Lake and received on the Colorado Springs chronograph is,

18h 48m 528.048.

The same happens on August 2. The Colorado Springs chronometer is 0.095 later than the Salt Lake chronometer on the Colorado Springs chronograph; therefore the mean is,

18h 39m 78.626.