[206] From the Adventure's deck, the eye being thirteen feet above the water, they were seen on the horizon at the distance of fourteen miles.
[207] If from the Second Narrow, N.E. ¼ E. will be the compass course; but I should recommend a ship to haul up to the northward until abreast of Cape Gregory, and then to steer as above.
[208] The Tide begins to set to the Southward at Noon, at Full and Change.
[209] In the Appendix to the second volume these alterations are discussed.—R. F.
[210] 2,600 Ang. R. F.
[211] This is derived from the observations of Captains Duperrey and Fitz-Roy at the Bay of Islands, in Lat. 35°. 16′. The interval is short; but the indication receives confirmation from the observations of Captains Cook and Vancouver at Dusky Bay, New Zealand, in Lat. 45°. 47′.
| Cook | 1773 | 70°. | 06′ |  | 1′.4 annual decrease. |
| Vancouver | 1791 | 69. | 43 |
[212] Or Mephitis Americana?
[213] Elminius Kingii, Gray in Zool. Miscell. from a specimen collected during the voyage.—Ed.
[214] Whilst this sheet was printing, the September number of the Annales des Sciences made its appearance in England, containing a description of the above shell by M. Sander Rang, accompanied by an excellent figure (Annales des Sciences Naturelles, September 1831, p. 55, pl. 3, f. 1). It is there named Helix multicolor. In my description I have considered it to be a Bulinus, but its specific name has been altered to that given to it by M. Rang.