Iftdevc. 407 



mode of development, of the Cirripeds, &c. 88— on thfe genus 

 Cotochilus, &c. 33G. 

 Granite, on the forms it assumes at the surface of the earth, 316. 



Hamilton, Sir William, Bart., his historical notices in regard to the 

 distinction of nerves and nervous filaments into motive and sen- 

 sitive ; and in regard to the peculiarity of function, and abso- 

 lute isolation of the ultimate nervous filaments, 67. 



Hares, identity of Irish and Alpine, 397. 



Harmotome (lime), or Fhilipsite, its chemical constitution considered, 

 by Professor Connell, 375. 



Hematozoary animals in the blood of a dog, 393. 



Hope, D. T„ Esq., on wood-paving, 252. 



Hope, J. C, Dr., his attempt to explain the phenomena of the freez- 

 ing cavern of Orenburg, 191. 



Hopkins, Mr, on glacier motion, 386. — On erratic blocks, 388. 



Humboldt, Alexander, Baron, on the comparative level of lakes and 

 seas, 323. 



Infusoria, poly gastric, their mode of generation, 185. 



Johnston, James, Esq., experiments on the explosive force of oxygen 

 and hydrogen gases, 160. 



Lakes and seas, their levels considered by Baron Humboldt, 323. 



Lawson, Robert, assistant-surgeon 47th Regiment, on the tempera- 

 ture and hygrometric state of the atmosphere of the Island of 

 Barbadoes, 57. 



Maclaren, Charles, Esq., F.R.S.E., his remarks on natural terraces 

 or raised beaches observed in the course of the river Tay, 

 278. 



Magdalena Bay in Spitzbergen, described, 195. 



Mastodontoid and Megatherioid animals, observations on, 129. 



Maxton, John, F.R.S.S.A., description of a self-acting stopper, 51. 



■ John, description of improved long slide-valve for condensing 



engines, 361. 



Mean temperature of places, methods of determining, by Professor 

 W. M. Carpenter, 53. 



Meteorological tables for 1843, 178. 



Milne, Admiral Sir David, on artesian wells, 79. 



David, Esq., F.R.S.E., on earthquake shocks, &c., 137. 



Mitchell's improved water-meter described, 48. 



Murchison, R. J., Esq., observations on Permian system of rocks. 

 Theory of the origin of coal. Lines of ancient sea-levels. On 

 Mastodontoidal animals ; and on the aini of the Geological So- 



