LIST OP PLATES IN VOL. VL 
Page 
Plates I. and II. Illustrative of Mr Tliomas Buchanan's 
Comparative Anatomy of the Organ of Hear- 
ing, founded chiefly on the ear of the Squalus, 169 
III. Chart by Mr William Jameson from the Rio de 
la Plata to the Coast of Chili, - ~ 203 
IV. Illustrative of Dr Craigie's essay on the Ana- 
tomical Peculiarities of the Sturgeon, - 337 
V. Illustrative of Mr Watt's paper on the Hori- 
zontal Threads of Spiders, - - 365 
VI. Figures of the Silurus Parkeri, Cephalus Coche- 
rani, and Scissurella crispata, - 380-387 
