570 WIL 



17. Supplementary Notes on the true position in the Devonian System 

 of the Cornish Killas Phil. Mag. ser. 3, XXI. p. 25. 



1 8. On the Granite and other Volcanic Rocks of Lundy Island. — Rep. 

 Brit. Assoc. 1843, Sect. p. 57. 



19. On the Exeter Amygdaloid. — Rep. Brit. Assoc. 184<4, Sect. p. 55. 



20. On the Trap-Rock of Bleadon Hill, in Somersetshire. — Journ. 

 Geol. Soc. I. p. 47. 



21. On the Origin of the Gypseous and Saliferous Marls of the New 

 Red Sandstone. —Journ. Geol. Soc. I. p. 148. 



22. On the Circumstances and Phsenomena presented by the Granite 

 of Lundy Island, and of Hestercombe in the Quantock Hills, com- 

 pared with those which characterize the Granites of Devon and 

 Cornwall. — Journ. Geol. Soc. II. p. 68. 



23. Supplementary Notice on the Geology of Lundy Island Rep. 



Brit. Assoc. 1848, Sect. p. 79. 



24. On an original broad sheet of Granite, interstratified among Slates 

 with Grit Beds, between Falmouth and Truro in Cornwall. — Rep. 

 Brit. Assoc. 1849, Sect. p. 68. 



Williams (H.). 

 1. Geology of Sarawak and Labuan. — Mundy, Narr. Borneo and Ce- 

 lebes, II. p. 376. 



Williams (J.). 

 1. On some remarkable Disturbances in the Veins of the Mine called 

 Huel Peever, in Cornwall. — Trans. Geol. Soc. ser. 1, IV. p. 139. 



Williams (J.). 

 1. Naturgeschichte der Steinkohlengebirge. Aus d. Engl, v, Dankel- 

 mann. Dresd. 1798, 8°. 



Williams (P.). 

 1. Natural and civil History of Vermont. Burlingt. 1809, 2 vols. 8°. 

 — Tr. Linn. Soc. Lond. XII. % p. 593. 



Williams (Thomas). 



1. On the Mechanism of Aquatic Respiration and on the Structure of 

 the Organs of Breathing in Invertebrate Animals. — Ann. and Mag. 

 N. Hist. ser. 2, XIII. pp. 180, 294. 



2. On the Structure and Functions of the Branchial Organs of the 

 Annelida and Crustacea. — Rep. Brit. Assoc. 1848, Sect. p. 83. 



3. On the Physical conditions regulating the vertical Distribution of 

 Animals in the Atmosphere and the Sea. — Rep. Brit. Assoc. 1848, 

 Sect. p. 83. 



4. On the Structure of the Branchise and Mechanism of Breathing in 

 the Pholades and other Lamellibranchiate MoUusks. — Rep. Brit. 

 Assoc. 1851, Sect. p. 82. 



5. Report on the British Annelida. — Rep. Brit. Assoc. 1851, p. 159. 



6. Observations on the Structure of the Star Fishes. — Rep. Swansea 

 Lit. Soc. 1851, p. 19. 



Williams (W.). 

 1. On a remarkable Wasp's Nest. — Proc. Zoo). Soc. Lond. Dec. 1838. — 

 Ann. of Nat. Hist. IV. p. 62. 



