which fibrous texture is also continued
through the cortical substance."--HUNTER, "On Whales," 'Animal Economy,'
Palmer's edit. p. 373.

[E] In his paper "On the Structure of Whales" (Phil. Trans. 1787),
Hunter remarks that the organ of smell "is peculiar to the large and
small Whalebone Whales." He further remarks, that, "in those that have
olfactory nerves, the lateral ventricles are not continued into them as
in many quadrupeds;" and he notices "the want of the olfactory nerves in
the genus of the Porpoise."--'Anim. Economy,' Palmer's edit. pp. 372,
373, 376.

[F] See Memoirs in the 'Transactions of the Royal Society of Edinburgh'
for 1832.

Extract of a Letter from Dr. BAIKIE to Sir JOHN RICHARDSON, M.D., C.B.,
F.R. & L.S., dated 29th October, 1857, Rabba, on the Qworra.

[Read January 21st, 1858.]

"In natural history my collection is advancing, especially in skins and
skeletons of birds. I am collecting skulls of all the domesticated
animals, and skeletons of the sheep and goats. I have got a few fish,
including a prettily-marked _Diodon_ or _Tetraodon_, probably new, and a
_Myletes_ which I did not meet with formerly. The _Siluridae_ are the
most abundant fishes; and one species closely resembles the
_Hypophthalmus_, figured by Rueppell in his 'Fishes of the Nile and Red
Sea.' I have not met with another Polypterus. I shall get a
_Lepidosiren_ in the river, and have heard of an electrical fish, I
believe a _Malopteruris_, such as I formerly found. I enclose two scales
of a fish which is said to grow to the length of 5 feet, but of which I
have specimens half that size only,--also a sketch of a curious fish
2-1/2 feet, which I put into spirits; it has neither ventral nor anal
fins, a very peculiar caudal, and a slender head, while the dorsal
extends along the whole back; eyes very small; teeth numerous and hard,
but not sharp." He adds, in a postscript, that he had got the
_Lepidosiren_. He had collected 700 species of plants, and numerous
fine fruits, which he says "will rejoice Sir William Hooker's heart."

Dr. Baikie's postscript, however, mentions that his vessel had been
wrecked about twelve miles above Lagos, and that she sunk in a few
minutes after she struck. He does not say what was the fate of his
collections, but states that all the party had fever from fatigue and
sleeping in swamps after the wreck.--J. R.

Catalogue of the Dipterous Insects collected in the Aru Islands by Mr.
A