INDEX. 
597 
Register of the weather at Corfu, during part of 1821, ^ 90 
Regulus, Golden- crested, Mr] Selby's observations on its 
migrations, 397 — Its arrival on the coast, from Berwick 
to Whitby, along with Thrushes and Woodcocks, 39 8 
— Disappeared entirely in the winter of 1822, 399 — 
Not seen in Scotland in the summer of 1823, - 399 
Reptiles, existence of the foramen centrale of the retina in 
certain species of, 1— In Lacerta superciliosa, 4 — L. 
scutata, 6 — L. calotes, 6 — Chameleon, - 104 
Retina, Dr Knox's account of the discovery of the foramen 
centrale of the, in the eyes of reptiles, - 1 
Rhinoceros horns of Blair-Drummond, Mr Blackadder's 
communication regarding them, - - 573 
Richardson, Dr John, his account of some fishes observed 
during Captain Franklin's journey to the polar sea, - 509 
S 
Schistostega, description of the genus, - - 55 
Sea-devil, Mr Lamont's account of the capture of one in 
the West Indies, - - , - 568 
Seetabuldee, a hill in India, Mr Vaysey's account of its 
geological structure, - _ 293 
Selby, P. J. Esq. his observations on the migrations of the 
Golden- crested Regulus, - « 397 
Serpents, Dr Knox on the mode of growth, reproduction 
and structure of the poison-fangs, 41 — Observations 
on the simple teeth of serpents, 412 — the fangs, 415 — 
A single fixed one only, in general, on each side, 415 
— Progressive growth of the fangs, - - 41 6 
Shells^ Mr Vaysey's account of some fossil ones found in 
the Gawilghur Range in India, - - 289 
Silurus Parkeri, described by Dr Traill, - - 572 
Skull, supposed antediluvian, - - 576 
Smelts kept for four years in fresh water, - - 579 
Spatangus, Dr Fleming's account of a new British species of, 287 
Spider, Mr Murray, on the power possessed by it of pro- 
pelling its threadsj and ascending into the air, 384-« 
