516 MAC 



31. On the possibility of changing the residence of certain Fishes 

 from SaltWater to Fresh journ. Roy.Inst. XVII. p. 209 ; XIX. 

 p. 237; XXI. p. 15; XXIV. p. 320. Feruss. Bull. 1826, VII. 

 p. 121 ; IX. p. 242; 1827, XVI. p. 131 ; 1828, XV. p. 247 

 Isis, 1833, X. p. 931. 



32. On the Concretionary and Crystalline Structures of Rocks. 

 Journ. Roy. Inst. XVIII. p. 60. 



33. On the Origin, Materials, Composition, and Analogies of Rocks. 



Journ. Roy. Inst. XIX. pp. 28, 200 Feruss. Bull. 1827, XII. 



p. 307. Leonh. Zeitschr. 1826, II. pp. 193, 289. 



34. On the Means by which Crabs throw off their Claws. Journ. 

 Roy.Inst. XX. p. 1. Feruss. Bull. 1827, XII. p. 285. 



35. On the Lignites Journ. Roy. Inst. XX. p. 205. 



36. On the Origin, Characters and Disposition of Unstratified 

 Rocks and Veins. Journ. Roy. Inst. XXII. p. 1. Feruss. Bull. 

 1827, XII. p. 309. 



37. On the Geological History and Formation of Coal. Journ. 

 Roy. Inst. XXII. p. 293. Feruss. Bull. 1827, XII. p. 310. 



38. On a figured variety of Coal, occurring in the Coal-field of 

 Glamorganshire. Journ. Roy. Inst. XXV. p. 131. 



39. On the Junction of Granite and Sandstone in Sutherland, arid 

 on the Lignite Formation of that District. Journ. Roy. Inst. 

 XXVI. p. 274. 



40. On Classification of Rocks Journ. Roy. Inst. XXVIII. p. 34. 



41. On a Prismatic Structure in Sandstone induced by Artificial 

 Heat ; and on certain Prismatic Rocks found in Nature, inclu- 

 ding the Columnar Sandstone of Dunbar. Journ. Roy. Inst. 

 XXVIII. p. 247. 



42. On the Coal-field of Sutherland. Journ. Roy. Inst. XXIX. 

 p. 40. Feruss. Bull. 1830, XXI. p. 32. 



43. A Geological Map of Scotland, etc. Edinb. 1826. 



44. On the Limestone of Clunie, in Perthshire, with remarks on 

 Trap and Serpentine. Brewst. Journ. Science, ser. 1, I. p. 1. 



45. On the Distribution of Granite and of Trap in different parts 

 of Scotland. Brewst. Journ. Science, ser. 1, II. p. 236. 



46. On a detached Block of Stone occupying the Summit of a Hill 

 at Dunkeld. Brewst. Journ. Science, III. p. 46. Feruss. Bull. 

 1826, IX. p. 139. 



47. A Description of the Western Islands of Scotland, including 

 the Isle of Man ; comprising an account of their Geological 

 Structure, etc. 2 vols. 8. and 1 vol. 4. Lond. 1819. 



48. A System of Geology. Lond. 1831, 2 vols. 8. Ed. Journ. 

 of Sc. 1831, Oct. p. 358. -Feruss. Bull. XXVI. p. 113. 



49. " Organic Remains " and other articles in Edinb. Encyclo- 



50. Geological Memoranda. Ross's First Voyage to North Pole, 

 App. No. III. 



MAcCuLLocn (Thomas). 

 1. On the Importance of Habit, as a Guide to Accuracy in Systema- 



