Rennell, Phil. Trans. 1781.

[370] Trans. of the Asiatic Society, vol. vii. p. 14.

[371] Cuvier referred the true crocodiles of the Ganges to a
single species, _C. biporcatus_. But I learn from Dr. Falconer
that there are three well-marked species, _C. biporcatus_, _C.
palustris_, and _C. bombifrons_. _C. bombifrons_ occurs in the
northern branches of the Ganges, 1000 miles from Calcutta; _C.
biporcatus_ appears to be confined to the estuary; and _C.
palustris_, to range from the estuary to the central parts of
Bengal. The garial is found along with _C. bombifrons_ in the
north, and descends to the region of _C. biporcatus_ in the
estuary.

[372] See below, ch. 22 and 29.

[373] Second Visit to the United States, vol. ii. p. 145.

[374] Asiatic Researches, vol. xvii. p. 466.

[375] Lyell's Second Visit to the United States, vol. ii.
chap. 34.

[376] See Manual of Geology by the Author.

[377] See p. 13.

[378] Geog. of Herod, vol ii. p. 331.

[379] Ibid. p. 328.

[380] Romme, Vents et Courans, vol. ii. p. 2. Rev. F. Fallows,
Quart. Journ. of Science, March, 1829.

[381] The heights of these tides were given me by the late
Captain Hewett, R. N.

[382] On the authority of Admiral Sir F. Beaufort, R. N.

[383] Consult the map of Currents by Capt. F. Beechy, R. N.,
Admiralty Manual, 1849, London.

[384] Rennell on Currents, p. 58.

[385] Rennell on the Channel current.

[386] An. du Bureau des Long. 1836.

[387] Second Parliamentary Report on Steam Communication with
India, July, 1851.

[388] Phil. Trans. 1830, p. 59.

[389] See Capt. B. Hall, On Theory of Trade Winds, Fragments
of Voy. second series, vol. i., and Appendix to Daniell's
Meteorology.

[390] Treatise on Astronomy, chap. 3.

[391] Descrip. of Shetland Islands, p. 527, Edin. 1822, to
which work I am indebted for the following representations of
rocks in the Shetland Isles.

[392] Dr. Hibbert, from MSS. of Rev. George Low, of Fetlar.

[393] Hibbert, p. 528.

[394] Hibbert, p. 519.

[395] Account of Erection of Bell Rock Lighthouse, p. 163.

[396] Ed. Phil. Journ. vol. iii. p. 54, 1820.

[397] Quart. Journ. of Sci. &c., No. xiii. _N. S._ March,
1830.

[398] Buist, Quart. Journ. of Agricult., No. xlv. p. 34, June,