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Nautical Time

The hour of the day or night is noted on board a ship by 1, 2, 3, &c., up to 8 bells. The 12 hours between midnight and noon, or noon and midnight, are divided into 3 portions of 8 bells each, the duration of time between bells being half an hour. During the course of each 12 hours, the same number of strokes of the bell will necessarily be used to denote three different hours or periods of time. Clock-Time. Clock-Time. Clock-Time.

Cincinnati......11.18 6:

Port.aud. 12.15 66 66 London.. 4.55 66 St. Louis. .10.55 66 Paris... 5.05 San Francisco.. 8.45 Rome 5.45 " New Orleans...10.56 66 Constantinople. 6.41 " Bell.

Washington....11.48 " Vienna... 6.00 66 1 denotes 12.30 4.30 Charleston.....11.36 وو St. Petersburg.. 6.57 66 Havana........11.25 66 Pekin, night... 12.40 л. м. 2 " 1. 5. 6010. Geographical or Nautical Mea- 3 " 1.30 5.30 8.30 9. 9.30 sure. 4 “ 2. 6. 1 = = = 360 = 1 Great Circle. Degrees. Leagues. Geo. Miles. 7.200 20 1 6012. Capacity of Cisterns, &c. 5 " 2.30 21600 6 “ 3. 6.30 7. 10. 10.30 60 7 “ 3.30 3 8 “ 4. 7.30 8. 11. 11.30 12.

Diameter in Feet Number Depth in of Wine Number of No. of and Inches.

Feet and Inches.

Gallons.

Barrels.

Hhds.

No. of Gallons in 10 Inches Depth. 2 ft. 2 ft. 45 11 19 2 ft. 6 in. 90 3 ft. 3 ft. 158 3 ft. 6 in. 252 258 24 6 12 63 1 30 2호 44 4 60 4 ft. 4 ft. 374 1155 59 78 63 4 ft. 6 in. 524 1649 3 83 97 63 5 ft. 5 ft. 732 23 118 122 5 ft. 6 in. 976 31 15 148 6 ft. 6 ft. 1267 40 20 1 176 6 ft. 6 in. 1614 51 25 207 3 7 ft. 7 ft. 2016 64 32 240 8 ft. 8 ft. 3004 9523 473 313 6 8 ft. 6 in. 3600 114 57 9 353 63 9 ft. 9 ft. 4276 135 765 396 63 9 ft. 6 in. 5027 15927 63 7983 441 6 10 ft. 10 ft. 5868 186 9365 489 11 ft. 11 ft. 7814 248 124 592 12 ft. 12 ft. 10152 322 161 705 63 13 ft. 13 ft. 12901 409 204 827 14 ft. 14 ft. 16111 5118 2554 959 15 ft. 15 ft. 19818 62965 8 314 1101 63 20 ft. 20 ft. 46992 14918 745 1958 25 ft. 25 ft. 91770 2913+ 1456 3059 Example: Suppose you desire to ascertain The right hand column shows the number of the capacity of a cistern 4 feet 6 inches in gallons contained in 10 inches of depth. By diameter and 4 feet 6 inches in depth. Find this standard you may easily increase or the diameter in the left hand column, and diminish the capacity at pleasure. Thus, if directly opposite you will see that the cis- you wish the above cistern to hold 97 gallons tern will hold 524 gallons of 231 cubic inches more, make it 10 inches deeper; or 194 galeach, equal to 1643 barrels, or 8 hogsheads. lons more, 20 inches deeper.