Observations of the warmth of the sea-water, &c. by Fahrenheit’s thermometer, in crossing the Gulph stream; with other remarks made on board the Pennsylvania packet, Capt. Osborne, bound from London to Philadelphia, in April and May 1775.
Observations of the warmth of the sea-water, &c. by Fahrenheit’s thermometer, in crossing the Gulph stream; with other remarks made on board the Pennsylvania packet, Capt. Osborne, bound from London to Philadelphia, in April and May 1775.
| Temp. of | Temp. of |
| Date. | Hour. | Air. | Wat. | Wind. | Course. | Distance. | Latitude N. | Longtitude W. | Remarks. |
| April | 10 | 62 |
| 11 | 61 |
| 12 | 64 |
| 13 | 65 |
| 14 | 65 | ° | ° |
| 26 | 60 | 70 | 37 39 | 60 38 | Much gulph weed; saw a whale. |
| 27 | 60 | 70 | S S E | W b S | 37 13 | 62 29 | Colour of water changed. |
| 28 | 8 A.M. | 70 | 64 | S W | W N W | 37 48 | 64 35 | No gulph weed. |
| — | 6 P.M. | 67 | 60 | 34 | Sounded, no bottom. |
| 29 | 8 A.M. | 63 | 71 | N | W | 44 | 37 26 | 66 0 | Much light in the water last night. |
| — | 5 P.M. | 65 | 72 | N E | Water again of the usual deep sea |
| 57 |
| — | 11 dit. | 66 | 66 | N WbN | W b S | colour, little or no light in it at |
| 30 | 8 A.M. | 64 | 70 | N E | W b N | 69 | night. |
| — | 12 | 62 | 70 | E b S | 24 | 37 20 | 68 53 | Frequent gulph weed, water con- |
| — | 6 P.M. | 64 | 72 | E S E | W b N | 43 | tinues of sea colour, little light. |
| — | 10 dit. | 65 | 65 | S | 25 | Much light. |
| May | 1 | 7 A.M. | 68 | 63 | 60 | Much light all last night. |
| — | 12 | 65 | 56 | S S W | W N W | 44 | 38 13 | 72 23 | Colour of water changed. |
| — | 4 P.M. | 64 | 56 | W b N | 21 |
| — | 10 dit. | 64 | 57 | S W | W N W | 31 | Much light. |
| 2 | 8 A.M. | 62 | 53 | 18 | 38 43 | 74 3 | Much light. Thunder-gust. |
| — | 12 | 60 | 53 | W S W | N W | 18 |
| — | 6 P.M. | 64 | 55 | N W | W S W | 15 |
| — | 10 dit. | 65 | 55 | N b W | W b N | 10 |
| 3 | 7 A.M. | 62 | 54 | 30 | 38 30 | 75 0 |