( 585 ) 
INDEX. 
AciPENSER STURio, 01' Sturgeon, Dr Craigie's account of 
its anatomical peculiarities, .... 334 
Allium, Monograph of the genus, by Mr G. Don, 1 — The 
species, with few exceptions, confined to the Temperate 
Zones, 2 — Characters of the genus as a great natural 
group, 3 — Porrum, 4 — Schaenoprasum, 27 — Macro spa- 
tha, 37 — Rhizirideum, 55 — Molium, 72 — Anguinum,96 
— -Ornithogalodeum, 99 — Nominal or doubtful species, 
and corrigenda, 102 
Alt Dhu Slate-quarry described, .... 234? 
Anglesea, its geology and statistics, described by Mr Men- 
teath, ...... 24)0 
Anguinum, in Mr Don's Monograph of the genus Allium, . 96 
Aranea geometrica, and other spiders, observations on the 
habits of, by Mark Watt, Esq. . . .365 
Arvicola, Mr Macgillirray's description of a new species of, 424? 
Asphaltum, vein of, described by Mr Witham, as occurring 
in gneiss, near Dingwall, . . . .123 
Buchanan, Thomas, Esq. sketches of the comparative ana- 
tomy of the organ of hearing in the genus Squalus, . 144 
