Xlvi FOURTH REPORT 1834. 



MacGilliviay, W. On the Natural History of the Transition 

 Ranges of Scotland. 



Exhibition of drawings of the Vertebrate Animals of Great 



Britain and Ireland. 



Maclaren, Charles. On the Geology of the Pentlands. 



Milne, David. On the Geology of Berwickshire. 



Murchison, R. I. On the Transition Formations of the Welsh 

 Border. 



Murphy, Rev. R. Notice of some recent electrical Experi- 

 ments, by Mr. Snow Harris, on the retention of Elec- 

 tricity on the surfaces of bodies in vacuo. 



Murphy, Lieut. Notice of the progress made in the Ordnance 

 Survey of Ireland. 



Murray. On Rates of Mortality. 



Murray, J. On the cultivation of Phormium tenax in Scotland. 



On the Chamseleon. 



On the Ascent of the Sap. 



Nicol, W. On the structure of Fossil Wood. 



Pentland, J. B. On a peculiar configui'ation of the Skull in a 

 race of men formerly existing in Peru. 



Phillips, Professor. On a method of causing the centre of 

 gravity of a Dipping-needle to coincide with its axis 

 of motion. 



On the Stratification of Primary Rocks, (in discussion on 



that subject.) 



Powell, Professor. On the Repulsion produced by Heat. 



On the Achromatism of the Eye. 



On the Dispersion of Light. 



Quetelet. In a letter to Mr. Whewell, M. Quetelet states his 

 belief that he has succeeded in reducing the examination 

 of the Law of Population to the discussion of ma- 

 thematical formulae, and requests that his views may be 

 tested by a comparison of the calculated results with those 

 furnished by obsei-vations in England, the United States, 

 and elsewhere. 



Ramage, John. On the construction of large reflecting Tele- 

 scopes. 



Reid, Dr. On the Connexion of Muscles with Nerves. 



Rennie, G. Notice of the successful performance of an In- 

 strument to measure the quantity of Mud in the water 

 of Rivers. 



Robinson, Rev. Dr. A Discourse on Halley's Comet, delivered 

 at an Evening Meeting of the Association. 



On the Visibility of the Moon in total eclipses. 



On the Situation of the Edinburgh Observatory. 



