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Like the results of the thermometer, the barometer also reveals some features of a tropical rather than of the temperate climate to which latitudinally Sacramento appertains. The elastic force of vapor, which was not applied at the times of the readings, from which the results in the following table are computed, increases directly with the temperature. In 1857 it amounted to nearly half an inch during midsummer, or one sixty-seventh of the entire atmospheric weight. The absence, also, of either abrupt or great changes in the readings of the mercurial column, gives further indications of the tropical features which the climate possesses. As a general rule, the atmospheric pressure varies but little, and that through slow and long continued movements, rather than in the sudden manner characteristic of the latitude on the Atlantic coast and elsewhere. Nevertheless, although the mercurial column rises and falls within very restricted limits, yet there are changes, represented it is true by small measurements, which occur with wonderful regularity and certainty-diurnal movements at fixed hours, as well as annual ones, having reference to the sun in the ecliptic. The former, or horary oscillations, as ascertained by a series of hourly observations, present in a marked degree the two diurnal maxima and minima observed within the tropics-the ante-meridian maximum at about 9 to 10 A. M. being more constant than at the same period post meridian. Without a single exception the pressure is always less at 3 P. M., and this has no reference to whether the column stands high as in the cold, or low as in the hot season.

In conclusion, and while referring to the following tables for confirmation of all that has been herewith advanced, we would remark that the mean of the means of the barometer for July is apparently higher than that of June, in consequence of some peculiar disturbing causes in June, 1853, which month should be regarded as exceptional.

Monthly and Annual Averages of Direction and Force of Wind at Sacramento. The Direction is calculated for the years 1853-7, and the Force for the years 1856-7 only.

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TABLE OF RESULTS OF FIVE YEARS' METEOROLOGICAL OBSERVATIONS AT SACRAMENTO.

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THE

STATE REGISTER,

FOR

1859 .

PART SECOND.

UNITED STATES.

I.-PRESIDENTS AND VICE-PRESIDENTS
Of the U. S., from the adoption of the Constitution.

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1. John Adams...

2.

2. Thomas Jefferson..

3. Aaron Burr....

4. George Clinton..

5. Elbridge Gerry..

...Louisiana.

......

.March 4, '41... April 4, '41

.April 4, '41....March 3, '45 ...March 4, '45...March 3, '49 March 4, '49...July 9, '50

..New York......July 9, '50 ....March 3, '53
.N. Hampshire... March 4, '53...March 3, '57
..Pennsylvania....March 4, '57...March 3, '61

VICE-PRESIDENTS.

6. Daniel D. Tompkins..

.. Massachusetts... April 30, 89...March 3, '97
.Virginia.....
.......March 4, '97... March 3, '01
.New York. .....March 4, '01...March 3, '05
..New York. ......March 4, '05+..
.Massachusetts... March 4, '13§..

.New York. ......March 4, '17...March 3, '25

7. John C. Calhoun........South Carolina...March 4, '25...March 3, '33

8. Martin Van Buren..

9. Richard M. Johnson..

10. John Tyler....
11. George M. Dallas..
12. Millard Fillmore.
13. William R. King.

....

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.March 4, '37...March 3, '41
.March 4, '41... April 4, '41

.. Pennsylvania ...March 4, '45...March 3, '49
.New York......
..March 4, '49...July 9, '50
..March 4, '53 ..

..Alabama

14. John C. Breckinridge....Kentucky ......March 4, '57...March 3, '61

* Died in office, April 4, 1841.
Died in office, 1812.

+ Died in office, July 9, 1850.
§ Died in office, 1814.

Died in office, April 18, 1853.

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