[G. 21. a, the Lbcusta albifrons of Madeira, b, the head.
,, 22. Louse of the Madeira Falcon, a, natural size, b, a claw magnified, c,
under yiew magnified.
„ 23. Thomisus, or the green spider of Madeira.
„ 24. Theridium, or the'brown spider, of do.
„ 25. Sedgwickia Hemispherica.
,, 26. Th§. Boqueirao, or Smaris Royerii.
,, 27. The Chixarra, or Seriola picturata.
,, 28. The Abrota, or Phycis furcatus.
„ 29. The Pequeno Dourado, or Labeo sparoides.
„ 30. A fossil branch from Canigal.
„ 3 1 . A fossil trunk from do.
,, 32. A-fossil Helix from Cani9al.
„ 33- a and b} a fossil Delphinula fronf do.
„ 34. a and b, a fossil Helix, do.g , „ 35. a, The Xyleborus, or worm which destroys the orange-trees of Madeira.
by the same dissected, c, the forceps, and process which supports
them, dy the forceps, and fleshy’appendices which surround them.'
36. Amorphocephalus granulatasi
37. Solo.ima aurata.
38. Mugil bispinosus.
39. Bodianus maculatus.
40. Pristipoma humilis.
4L Diastodon speciosus.
42.. Dentex unispinosus. .
43. Seimila elongata.
44. Clupea fimbriata.
45. a, Balistes radiata, b, the teeth.
46. Dentex diplodon.
47. Labrus Jagonensis.
48. Tetraodon lsevissbnus.
49. 1/icliia tetracantha.
50. Pimelodus Gambensis.
51. Anomalodon inciaus.
52. Chromis triacantba.
53. Julia squami-marginatua.
54. ■ Sciama dux,
55. Beak of the Gambia Ibis.
56. Head of Lizard.
57. Mandingo bolt or lock.
E X C U R S I O N S
IN
M A D E I R A A N D PORTO SANTO,
CHAPTER I.
Observations on Portuguese Government.—Geological Excursions in
the Environs of Lisbon.—Aqueduct.—Fishes.—Almada.—Shells.
Voyage to Madeira.—Fellow Passengers.—Gull.—Fishes and
Molluscoe.
H A V IN G deyoted the three years and a half, which had elapsed
since my publication of the Mission to Ashantee, to a patient
study of physical science and natural history, I became anxious,
on the extinction of the African Committee, and the formation
of the new government for the Gold Coast, to repair to Sierra
Leone, with the view Of making myself useful, if permitted to do
so. I determined, however,, to proceed to Lisbon, in the first
instance ; in the hope of getting access to some. MSS. in the public
and private archives of that city, which might enable us to form
an idea of the extent of the ^Portuguese discoveries, establishments,
commerce, and influence, in the interior of Congo, Angola, Ben-
guela, and Mozambique. Although furnished with very strong
letters to distinguished individuals at Lisbon, the difficulties