Index uppermost. Instrument inverted. A + 6'. 35" B - 5'. 00" 6 . 35 4 . 55 6 . 40 5 . 00 -------- --------- Mean 6 . 36.7 Mean 4 . 58.3 B. Mean + 6 . 36.7 A. --------- 4) 11 . 35 2 . 53.7 Dip. 3 . 49 Tabular. 55 Difference - --------- Height of the eye, 15 feet. Parts of the horizon observed, SE. and NW. Thermometer { Air 64º { Sea 59º Depth of the sea, 222 feet. Latitude 34º. 57' south. Longitude 20º. 15' east. Cape Lagullus due north, distant 6 or 8 miles. Calm all day; sky clear, and weather hazy. On the 29th and 30th of July we were off the Cape, but the weather was so bad as to prevent any sights being taken. [Transcriber's Note: The final column of each of the following tables is transcribed beneath the table.] --+--------+----+-----------+-----+-------+-------+-----+-------+------+------+ | |Height Dip. |Diff.|Then. |Differ.| | | | | | | of +-----------+--+--+---+---+---+---+ | | Long.|Sound-| No. Date. |eye.| Obs. |Tab.|+ |- |Sea|Air| + | - |Baro.| Lat. | East.| ings.| --+--------+----+------+----+--+--+---+---+---+---+-----+-------+------+------+ |1816. |f. i|' " |' "| "| "| º | º | | | | º ' | º ' | feet | 18|June 16.|15 3|4 35.0|3 50|45| |83 |82-|1/2| |29.86| 5 11 S|106 3 | 60 | | | | | | | | |1/2| | | | | | | 19|June 16.|15 3|4 33.0|3 50|43| |83-|82 | 1-| |29.86| 5 05 S|106 10| 56 | | | | | | | |1/2|sh.|1/2| | | | | | | | | | | | | |{85| | | | | | | 20|June 16.|14 0|3 59 |3 41|18| |84-|{sh|1/2| |29.83| 5 05 S|106 10| 48 | | | | | | | |1/2|{95| | | | | | | | | | | | | | |{su| | | | | | | 21|June 16.|14 |4 01 |3 41|20| |83 |81 | 2 | |29.85| 5 05 S|106 10| 57 | 22|June 27.|16 |4 21.0|3 56|25| |84 |82 | 2 | |29.81| 6 49 N|107 49| | 23|June 28.|16 |4 22.2|3 56|26| |84 |82 | 2 | |29.80| 8 00 |108 10| | 24|July 3. |16 |4 08.2|3 56|12| |84-|81 | 3-| |29.77|13 29 |112 59| | | | | | | | |1/2| |1/2| | | | | | 25|July 6. |16 |3 53 |3 56| | 3|84 |83-|1/4| |29.75|20 00 |114 | |