APPENDIX. 
281 
37. —On the Occurrence of Silicified Trunks of Trees in the New 
Red Sandstone at Allesley. Geol. Soc. Proc., II., 1838. 
38. —On the Discovery of Fossil Fishes in the Bagshot Sands. 
Geol. Soc. Proc., II., 1838. 
39. —On the Discovery of a Fossil Wing of a Neuropterous Insect 
in Stonesfield Slate. Geol. Soc. Proc., II., 1838. 
40. —On the Fossil Fishes in the Bagshot Sand at Goldworth 
Hill, four miles north of Guildford. Phil. Mag., XIII., 
1838. 
41. —On the Action of Acidulated Waters on the Surface of the 
Chalk near Gravesend. Brit. Assoc. Rep., 1839. 
42. —On the Agency of Animalcules in the Formation of Lime¬ 
stone. Ashmolean Soc. Proc., XVII., 1840. 
43. —On Modes of Locomotion in Fishes. Ashmolean Soc. 
Proc., II., 1843—52. 
44. —On Recent and Fossil Semicircular Cavities caused by air- 
bubbles in the surface of the soft day, and resembling 
impressions of rain-drops. Brit. Assoc. Rep., J842. 
45 -—On the Former Existence of Glaciers in Scotland and in the 
North of England. Edinb. New Phil. Journ., XXX., 
1841 ; Geol. Soc. Proc., III., 1842. 
46.—On the Agency of Land-Snails in corroding and making 
deep excavations in compact Limestone Rocks. Geol. 
Soc. Proc., III., 1842. 
47 - On the Glacio-diluvial Phenomena in Snowdonia and the 
adjacent parts of North Wales. Geol. Soc. Proc., III., 
1842. 
48. —On Artesian Wells. Edinb. New Phil. Journ., XXXVII., 
1844. 
49. —On the Mechanical Action of Animals on hard and soft 
Substances during the Process of Stratification. Brit. 
Assoc. Rep., 1845. 
50. —On Ichthyopatolites, or Petrified Trackways of Ambulatory 
Fishes upon Sandstone of the Coal Formation. Geol. 
Soc. Proc., IV., 1843. 
19 
