(5) In latitude 51° 28′, the departure made good was 50 miles. Required the d.long. by parallel sailing. ADDITIONAL FOR ONLY MATE. (6) 1864, March 25th. Required A. M. and P. M. tides at Bristol. (7) Required the course and distance, by Mercator's sailing, from A to B. A-Lat. 22° 55′ S. A-Long. 43° 9′ W. (8) 1864, September 2nd, at 6h. 45m. A. M., apparent time at ship, in latitude 40° 16' N., longitude 170° E., the Sun's inagnetic amplitude was E. 10° 16' N. Required the true amplitude and variation. (9) 1864, January 2nd, P. M. at ship, in latitude 36° 50′ N. the observed altitude of the Sun's 1. 1. was 20° 50', index error 1' 10", height of the eye 18 feet, time by chronometer 2d. 5h. 23m. Os., which was fast 1m. 16s. for mean noon at Greenwich, on the 20th December, 1863, and gaining daily 35.7. Required the longitude by chronometer. ADDITIONAL FOR FIRST MATE. (10) 1864, January 15th, mean time at ship 6h. 55m. P. M., in latitude 54° 11′ N., longitude 36° E., the Sun's bearing was N. 115° 50′ W., and at the same time the altitude of the Sun's 1.1. was 13° 13′ 25′′, index error 4' 10", height of the eye 9 feet. Required the variation of the compass. (11) 1864, September 29th, P. M. at ship, in latitude by account 52° 40′ S., longitude 16° 36′ W., the observed altitude of the Sun's 1. 1. near the meridian was 39° 36′ 50′′ N., height of the eye 23 feet, time by watch 29d. Oh. 15m. 16s., which was 3m. 14s. slow on apparent time at ship, but since the error was determined the d.long. made to the E. has been 20 miles. Required the latitude. ADDITIONAL FOR MASTER. (12) 1864, September 19th, the observed meridian altitude of the star Markab, bearing N., was 36° 35', index error + 4′ 10′′, height of the eye 16 feet. Required the latitude. PAPER IV. FOR SECOND MATE. (1) Multiply 26 by 15, by common logs. (4) 1864, October 7th, in longitude 145° 25' W., the observed meridian altitude of the Sun's 1. 1. was 36° 18′ 25′′, bearing N., index error 3′ 10′′, height of the eye 20 feet. Required the latitude. (5) In latitude 44° 55', the departure made good was 22 miles. Required the d.long. by parallel sailing. ADDITIONAL FOR ONLY MATE. (6) 1864, October 1st. Required the A. M. and P. M. tides at Hull. (7) Required the course and distance, by Mercator's sailing, from A to B. (8) 1864, December 1st, at 6h. 45m. P. M., apparent time at ship, in latitude 32° 58′ S., longitude 175° 12′ W., the Sun's observed setting amplitude was W.S.W. Required the variation. (9) 1864, May 23rd, P. M. at ship, in latitude 40° 17′ 26′′ N., the observed altitude of the Sun's 1.1. was 56° 47', height of the eye 17 feet, time by chronometer 23d. 3h. 22m. 7s., which was fast 3m. 27s. on mean time at Greenwich, on April 10th, and gaining daily 4.5. Required the longitude by chronometer. ADDITIONAL FOR FIRST MATE. (10) 1864, February 25th, mean time at ship 8h. 10m. A. M., in latitude 41° 10′ N., longitude 2° 55′ W., the Sun's bearing by azimuth compass was S. 20° 20' E., altitude 1.1. 31° 41', height of the eye 22 feet. Required the variation of the compass. (11) 1864, February 26th, A. M. at ship, in latitude by account 21° 52' N., longitude 6° 10′ W., the observed altitude of the Sun's 1. 1. near the meridian S. of the observer, was 59° 12′ 40′′ index error + 5", height of the eye 20 feet, time by watch 25d. 23h. 50m. 25s., which had been found 1m. 21s. fast on apparent time at ship, but since the error was determined the ship has made 16 miles d.long. to the E. Required the latitude. ADDITIONAL FOR MASTER. (12) 1864, April 14th, the observed meridian altitude of the star Arcturus was 13° 45', bearing N., height of the eye 17 feet. Required the latitude. F PAPER V. FOR SECOND MATE. (1) Multiply 37 by 109, by common logs. (2) Divide 1860 by 31, by common logs. (3) 8 4 .Leeway | ܕܬܿ Remarks, &c. 1 A point of land in lat. 37° 35' S. long. 150° 55′ W. bearing by compass 18 S.S.W. W. 5 5 0 S.W. 9 N.W.byN. 4 6 S.W. by S. 0 Variation 22 pts. E. 10 11 12 1 S. by E.E. 4 11 (4) 1864, June 12th, in longitude 2° W., the observed meridian altitude of the Sun's 1.1. was 30° 30′ 10′′, bearing N., index error + 3′ 2′′, height of the eye 20 feet. Required the latitude. (5) In latitude 39° 6', the departure made good was 42 miles. Required the d.long. by parallel sailing. ADDITIONAL FOR ONLY MATE. (6) 1864, November 26th. Required the A. M. and P. M. tides at Aberdeen. (7) Required the course and distance, by Mercator's sailing, from A to B. A-Lat. 15° 41′ S. B-Lat. 4° 23′ N. A-Long. 11° 58′ E. (8) 1864, February 17th, at 7h. 45m. A. M. apparent time at ship, in latitude 30° 25′ S., longitude 100° W., the Sun's magnetic amplitude was E. 20° N. Required the true amplitude and variation. (9) 1864, March 26th, P. M. at ship, in latitude 20° 10′ S., the observed altitude of the Sun's 1.1. was 29° 50′ 30′′, height of the eye 16 feet, time by chronometer 26d. 9h. 5m. 55s., which was 9m. 13s. slow for mean noon at Greenwich, on January 4th, and losing daily 3s. Required the longitude by chronometer. ADDITIONAL FOR FIRST MATE. (10) 1864, December 30th, mean time at ship 9h. A. M., in latitude 59° S., longitude 125° 7' W., the observed bearing of the Sun was N. 60° 32′ E., altitude 1.1. 30° 15', index error 2' 11", height of the eye 13 feet. Required the variation. (11) 1864, March 4th, A. M. at ship, in latitude by account 40° 10′ N., longitude 2° E., the observed altitude of the Sun's 1. 1. near the meridian was 44° 11′ 55′′ S. of the observer, index error 1' 10", height of the eye 7 feet, time by watch 10h. 59m. 55s., which was 1h. 1m. 1s. slow on apparent time at ship, but since the error was determined the ship has made 38 miles d.long. to the W. Required the latitude by reduction to the meridian. ADDITIONAL FOR MASTER. (12) 1864, July 30th, in longitude 120° W., the observed altitude of the star Procyon was 56° 12′ 45′′, bearing S., index error + 3', height of the eye 20 feet. Required the latitude. |