346 OUTLINES OF PERIODICAL LITERATURE. 
rostres, Cultirostres, Longirostres, and Macrodactyla ; and, with reference to a 
lancastrian specimen of the Scolopax sabini, you have an interesting foot- 
note. Mr. S. distinguishes fifty species of the PALMIPEDEs, arranged under 
the four families—Brachyptera, Longipennata, Totipalmata, and Lamellirostres 
—and his individuals are, Podiceps cristatus, the crested grebe ; P. rubricollis, 
the red-necked grebe; P. minor, the little grebe: Colymbus glacialis, the 
northern diver; C. arcticus, the black-throated diver; C. septentrionalis, the 
red-throated diver; Uria troi/e, the foolish guillemot ; Mergula melanoleucus, 
the little auk; Fraterculo arctica, the puffin; Alea torda, the razor-billed 
auk, which is the same bird as the black-billed ; Thalassidroma pelagica, the 
stormy petrel; I’. dudlochii, the fork-tailed petrel; Lestris richardsonii, the 
black-toed gull ; L. parasiticus, the arctic gull; L. pomarinus, the pomarine 
gull; Rissa cinerea, the kittiwake; Larus canus, the common gull; L. argen- 
tatus, the herring gull; L. fuscus, the lesser black-backed gull; L. marinus, 
the greater black-backed gull; L. glaucus, the glaucous gull; Chroicocepha- 
lus rudibundus, the black-headed and red-legged gull; Sterna anglica, the 
gull-billed tern; 8. cantiaca, the Sandwich tern; 8S. arctica, the arctic stern 5 
S. marina, the great or common tern; 8. minuta, the little tern; S. nigra, the 
black tern; Phalocrororax carbo, the cormorant; Sula bassana, the gannet ; 
Mergus merganser, the gosander; M. serrator, the red-breasted merganser ; 
M. aibellus, the smew ; Fuligula jerina, the pochard; F. cristata, the tufted 
duck; I’. gesneri, the scaup duck; Oidemia nigra, the scoter; O. fusca, the 
great black or velvet duck; Clangula chrysophthalmos, the golden eye ; Ma- 
reca penelope, the widgeon ; Querquedula erecca, the teal ; Chaliodus strepera, 
the gadwell; Rhychaspis clypeata, the shoveller; Anas boschas, the wild 
duck ; Tadorna belonii, the shieldrake ; Anser segetum, the bean goose; A. pa- 
lustris, the wild goose; Bernicula leucopsis, the barnacle goose ; B. brenta, the 
brent goose ; Cygnus ferus, the wild swan. To the Lancashire Fauna, this 
list of Mr. Skaife’s forms a valuable contribution. For article 111, you have 
an essay on the peculiar insulation of the Nervous currents in the Chameleon, 
with observations on the change of colour in that creature, by Dr. Weissen- 
born. Among a diversity of remarkable inductions, this eminent naturalist 
arrives at the following—that one lateral half of the animal is often of a co- 
lour decidedly different from that of the other ; that the nervous currents 
in one lateral half of the chameleon are going on independently of those in 
the other, and that this animal has two lateral centres of perception, sensa-. 
tion, and motion, besides the common one wherein the faculty of concentra- 
tion resides; that, notwithstanding the strictly symmetrical structure ot the 
creature, as to its two lateral halves, its eyes move independently of each 
other, and convey different impressions to their respective centres of per- 
ception; that, when it is agitated, its movements appear like those of two 
animals glued together, each half wishing to move its own way, without any 
symmetry of action ; that the creature may be asleep on one side, and awake 
on the other; that its changes of colour depend altogether on the degree in 
which the nervous system is stimulated or inactive; that a superficial whit- 
ish pigment in the cutaneous system always determines the animal’s general 
colour when undisturbed, relaxed or torpid, whereas the other hues develope 
themselves according to the degree in which a dark cutaneous pigment is 
excited; that the colour of the chameleon is of a pale almost uniform kind, 
during sleep, when it is wrapped closely in flannel or wool and left in a quiet 
