III. METEOROLOGICAL TABLE FOR PROVIDENCE, R. I. Summary of Meteorological Observations made at Brown University. Lat. 41° 50′ 17′′ N., Long. 71° 23' 40" W. from Greenwich. Barometer reduced to the Sea-level, and to 32° Fahr., and corrected for Capillarity. By Prof. A. CASWELL.

1. MEAN BAROMETRIC PRESSURE AND EXTERNAL THERMOMETER.

July,

August,

30.01

29.97

30.00

September,

30.01

29.99

30.03

October,

29.95

29.89

29.95

November,

30.13 30.08

December,

Ann. Mean,

30.04
30.007

30.13 30.02 30.06 29.970

30.005

Months.

29.993 66.1 77.0
30.006 54.3 67.7
29.931 42.7 55.5
45.8 48.0 78 29
29.936 39.1 50.2 40.7 43.3 70 29
30.041 26.7 32.7 26.8 28.4 61
29.974 44.81 55.25 46.02 47.66 90

2. WINDS, CLOUDS, AND RAIN.

No. of Days on which
Rain or Snow fell.

Quantity of Rain and

4.9 4.0

4.9

5.8

6.1

5.7 5.5

5.0 5.0

5.5 5.3 10

3.40

5.9 6.0

3.1 4.1

3.4 4.3

4.9 5.2

REMARKS. The greatest height of the barometer (reduced as above) was 30.650 inches on the 24th of January: the least was 29.167 inches on the 23d of April, showing the extreme range for the year to be 1.483 inches. The maximum temperature was 90° on the 12th of July; the warmest day was the 29th of June, the mean of three observations being 790.3. The minimum temperature was -11° on the 11th of January, which was the coldest morning since the 23d of January, 1857, when a standard thermometer in the same place stood at the same point, viz. 14° below zero. The observation recorded is from a Smithsonian thermometer. We have no record in this place of a greater degree of cold than this. The coldest day, however, was the 10th of January, the mean of three observations being -4°.0. The amount of rain for the year was 4.62 inches above the average for 28 years.

*Observations are made at 6 A. M. from April 1st to October 1st, and at sunrise from October to April.

IV. METEOROLOGICAL TABLE FOR WORCESTER, MASS. Lat. 42° 16' 17" N.; Long. 71° 48' 13" W.; elevation 536 feet. Hours of Observation, 7 A. M, 2 and 9 P. M.

Inches Rain,
Days of
N&NW wind
W. & S. W. "
S. & S. E. "
E. & N.E. "6

& snow-water 3.09 1.69 4.09 4.95 3.67 7.71 2.90 3.65 4.62 6.25 23.00 18.75 4.75 1.00 0.

7113

0

28

15

5.7

6.0

6.2

Mean at 2

35

·aoquuooed °33༢ལཎྜཧྨགྶཧྨསྶ

Barometer. inch. inch. inch. inch. inch. inch. inch inch. inch. inch. inch. inch. (7 29.52 29.33 29.57 29.58 29 45 29.31 29.28 29.52 29.44 29.42 29.42 29.50 29.44 29.48 29.34 29.54 29.52 29.39 29.25 29.27 29.47 29.39 29.39 29.37 29.44 29.40 29.57 29.34 29.46 29.57 29.44 29.27 29.25 29.52 29.43 29.41 29.40 29.46 29.43 daily, 29.52 29.34 29.52 29.56 29.43 29.28 29.37 29.50 29.42 29.41 29.39 29.47 29.43 Cloudiness.

7.0

5. 3.4 5.5 5.4 5.8 4.3 5.2 5.7

9 12

3.09 1.69 4.09 4.95 3.67 7.71 2.90 3.65 5.17 1.26 5.45 4.00 47.63

3.9 2.8 5.1 5.0

10

14

25

34

28

o August.

REMARKS. By clear days is meant entirely clear, i. e. no cloud whatever being visible. By rainy days, that more or less rain fell, without any reference to quantity.

V. AMOUNT OF RAIN AND SNOW REGISTERED AT THE STATE LUNATIC HOSPITAL, WORCESTER, MASS., FOR EIGHTEEN YEARS.

Year. Inches Inches Inches Inches Inches Inches Inches Inches Inches Inches Inches Rain. Snow. Rain. Snow. Rain. Snow. Rain. Snow. Rain. Snow. Rain. 1841-42 4.77 6.0 1.35 5.0 4.13 3.0 2.24 4.0 2.82 1842-43 5.30 26.0 5.05 2.0 4.45 30.0 5.23 26.0 3.13 10.0 1843-44 2.28 23.0 3.14 13.5 1.44 12.0 3.80 18.5 0.35 1844-45 2.05 8.0 4.17 12.0 2.61 20.0 3.29 10.0 1.61 1845-46 5.39 13.0 2.92 13.0 2.50 30.0 3.33 1846-47 2.87 9.0 4.66 5.0 4.08 17.0 3.89 8.0 1847-48 4.93 10.5 3.08 4.5 1.61 25.0 3.89 6.0 1.52 1848-49 3 93 25.0 0.98 2.0 1.30 14.5 6.30 3.0 1.95 1849-50 8.5 4.79 15.0 3.23 2.0 3.67 20.0 1850-51 4.19 23.5 2.07 2.5 4.01 1.5 1851-52 2.30 5.5 5.44 1852-53 4.78 4.0 3.02 1853-54 3.79 20.5 2.82 1854-55 3.43 15.5 8.11 1855-56 6.90 10.5 4.60 10.2 3.34 1856-57 4.08 3.0 4.48 11.7 8.87 1857-58 5.33 9.0 2.13 3.37 1858-59 4.09 6.2 4.95 3.67 18.7 7.71 4.7 2.90 Sums, 73.54 226.7 67.76 204.5 59.37 239.7 62.23 163.7 73.93 Means, 4.08 12.6 3.76 11.3 3.29 13.3 3.45

3.24

1.73

3.67

3.23

5.85

1.63

5.0

6.82

3.56

5.53 13.0

7.50

V. CONTINUED.

June. July. August. Sept. October.

Year.

7.12

November. Inches Inches Inches Inches Inches Inches Inches Inches Rain. Rain. Rain. Rain. Rain Snow. Rain. Snow. 1841-42 4.93 1.96

Total.

luches Inches

Rain. Snow.

3.50

0.83

3.36

40.25 18.0

1842-43 4.15 3.39

9.19

1.25

5.19

3.63

1843-44 1.92 3.50

Sums, 57.86 64.79 99.03 66.70 78.63
Means, 3.21 3.59 5.5

The above Table, increasing in value as years are added, exhibits the mean quantity of Rain and Snow for each month, the yearly mean, and the amount falling in each month and year during the last seventeen years.

VI. METEOROLOGICAL TABLES FOR LAMBERTVILLE, N. J. Lat. 40° 22′ 45′′ N.; Long. 74° 55′ 30′′ W. Barometer 96 feet above Mid-Tide. By L. H. PARSONS.

1. SUMMARY FOR THE YEAR ENDING AUGUST 31, 1860.

57.79 72.02 59.1381.011 42.59 57.34 46.0977.6 4 38.21 50.77 41.91 71.0 5 25.74 35.02 28.63 67.0 2 1860. January, 22.39 37.80 29.23 53 121-10.5 6 63.6 30.034 30.036 30.063 30.55 529.63 17 February, 21.23 37.91 29.31 66 523-8.0 3 74.5 30.043 30.028 30.061 30.50 229.2518 1.25 March,

45.26 59.83 47.82 97.4 10* -10.56+ 107.9 29.969 29 960 29.989 30.55 529.25 18§ 1.30

1 January.

§ February.

Clear.*

2. WEATHER FOR YEAR ENDING AUGUST 31, 1860.

9 P. M.

3. Average Monthly Mean for 23 Years, from 1837 to 1859 inclusive.

March,

32 35 45.95 37.09 July,

70.77 83.98 69.77 Nov.

April,

43.43 57.57 46.32 August, 67.14 80.63 67.70|| Dec.
4. Annual Mean and Extreme Temperature for 23 Years.

58.19 73 57 59 99 45.13 60.29 49.63 36.11 49.03 40.19 27.78 37.77 30.72

7 A. M.

5. Quantity of Water from Rain and Snow, and Depth of Snow, for 22 Years.

48.34 101 5 July 18, '56 -20.0

Jan. 24, 1857 | 121.5

VII. METEOROLOGICAL TABLES FOR MUSCATINE, Iowa. For the Year 1858. By T. S. PARVIN, Smithsonian Observer.

Lat. 41° 25' N., Long. 92° 2′ W. (proximate).

Barometer 72.21 ft. above low water in (and 586.21 ft. above the mouth of) the Mississippi

Barometer,

Height reduced to
Freezing Point.

9 P. M.

Monthly
Mean.

1859. inch. inch. inch. inch.

March .28

.20

.25

April,

.44

.72

.32

May,

.45

.36

.38

June, .44 .45

.42

July, .51 .50

.45

Aug. .48 .45

.45

Sept'r, .55 .50

.53

Jan' y, 29.64 29.65 29.64 29.61 19.3 29.3 228 24.10 21.94 .360
Feb'y, .52 .46 .50
.48 19.4 33.2 24.7 25.77 24.71 .251
.22 34.5 45.9 40.1 40.09 35.16 .230
.38 36 5 52.8 41.9 43 27 49.44 .243
.39 56.9 69.6 59.6 62.13 58.57 .447
.44 60.3 72.0 63.1 69.00 67.71 .546 .591
.45 63.5 85.0 68.8 72.33 72.14 .675 .801
.46 62.4 80.8 65.7 69.22 69.87 .655 .723
.54 53.0 69.5 58.9 60.25 62.65 .506.547
Oct'r, .60 .58 .54 .56 40.5 56.2 43.4 47.47 49.64 .335 .355
Nov'r, .48 .46 .50 .58 33.7 46.7 38.2 39.61 35.39 .234 .268
Dec'r, 29.57 29.55 29.57 29.57 9.6 21.4 13.8 15.11 24.13 .099 .102

Sums, 35,396 35,388 35,355 35 561 5,096 6.624 5,410 56,541

.703 77 8133
.718 82 78 83
.548 82 83 3
.364 83 80
.255 84
.095 85 85 34

4,581 5,163 5,073 96 92 95

Me'ns, 29.49 29.49 29.49 29.47 42.4 55.2 45.0 47.37 47.97 .380 .430 .422 79 77 79 2. CLOUDS, RAINS, WINDS, ETC.

Sums, 477 445 418 16 393 59 213 291 176 141 74 152 86 33.50 26 39.75 45 83 106 130 148 188 152 An.M'n, 3.9 3.7 3.4 1 0 8 5 1.8 2.4 1.5 12 6 12 7 2.79 4 5.68 4 7 9 10 1.5 1.3 1.2

Lowest Temperature, December 31st, -220. Highest, July 18th, 970. Range, 1190. Mean, 470.37. Average Mean for 20 years (1839-58), 470.97. Greatest Range of mean temperature, 120.49. Lowest height of barometer, March 3d, 23.78 inches; thermometer attached, 400. Greatest, January 22d, 31.00 inches; thermometer attached, 200. Range, 2.22 inches. Mean height, 29.47 inches.

Frost, last in the spring, June 4th, very light; April 23d, hard; first in the fall, Sept. 2d disappearance from the ground, April 1st; depth of ground frozen, 11 inches. Ice, thickness in the river, 1858-59, 10 inches.

River Statistics, 1858-59. Mississippi closed, Jan. ('59) 7th. 1859-60, Dec. 8th. Mean time for 20 years, (1839-58) Dec. 27th. Mississippi opened Feb. 21st. Mean time for 20 years, Feb. 22d. Number of days closed, 45: number for 20 years. 61. The greatest rise, June (early), 13 feet; greatest fall, Sept., 11 feet; extreme rise and fall, 11 feet. Monthly Record. -January, a mild month; river open till the 7th. February, last half mild; river open on the 21st; boats in both months; first arrival on the 24th. March, good stage of water; boats running regularly; first half very wet, too wet to plough. April, very disagreeable, with storms of wind, rain, snow, and hail till about the 23d.