128 



INDEX II. 



Macrourals, on the antennte of the annu- 

 losa, and their homology in the, 81. 



Madden (Major E.) on the botanical geo- 

 graphy of part of the Himalaya and 

 Thibet, 72. 



Magnecrystallic action, on magnetism 

 and, 15. 



Magnetic intensity instrument, Hans- 

 teen's, effect of three iron cylinders 

 upon, wlien placed in a given posi- 

 tion, 9. 



Magnetism, 6. 



Magnitudes, mechanical, parallelogram 

 of, 1. 



Magnus (Prof.), monothermic pile in- 

 vented by, experiment in thermo-elec- 

 tricity with the, 18. 



Mammalia, fossil, of the red crag, 67; 

 from the eocene freshwater formation 

 at Ilordwell, Hants, G7. 



Mathematics, 1. 



May (Charles) on railway chairs and com- 

 pressed wood fastenings, 114; on the 

 application of chilled cast iron to the 

 pivots of astronomical instrument^-, ib. 



Mechanical science, 110. 



Mercer (Mr.) on a new method of con- 

 tracting the fibres of calico, and of 

 obtaining on the calico thus pi-epared 

 colours of much brilliancy, 51. 



Merciu'ial vapours in the Daguerreotype 

 process, on the dangers of the, and the 

 means to obviate the same, 44. 



Meteorological observations, orj the Alten 

 and Cliristiania, 33 ; abstract of, made 

 at Futtegurh, in India, for the year 

 1850, 39 ; note by Dr. Buist on the, 40 ; 

 jjiote by Colonel Sykes on the, ib. 



Meteorological phsenomena at Huggate in 

 Yorkshire, register of, 36. 



Meteorology, 29. 



Meteors, 21. 



Mexico, ascent of Orizaba in, 98. 



Microscope, on a ncv/ mode of illumina- 

 ting opake objects luider the highest 

 powers of the, 7 ; on a new arrange- 

 ment for facilitating the dissection and 

 di'awing of objects placed under the, ib. 



Milo, on the volcanic group of, 89. 



Mineral theory of Baron Liebig, on agri- 

 cultural chemistry, especially in relation 

 to the, 45. 



Mines, on a direct action steam-fan for the 

 more perfect ventilation of coal, 116. 



Molecular vortices, summary of the results 

 of the hypothesis of, 3. 



Mollusca, on two new species of nudibran- 

 chiate, 74 ; on the land and freshwater, 

 found near Nottingham, 80 ; on the geo- 

 graphical distribution of the land, 82. 



Mollusks, on the bi'anchiae and mecha- 

 nism of breathing in the lamellibran- 

 chiate, 82. 



Monothermic pile, experiment on thermo- 

 electricity with the, 18. 



Morphology of the fruit in the Cruciferae, 

 on the, 70. 



Mortality in different sections of the me- 

 tropolis in 1 8 19, on the, 99. 



Murchison (Sir 11. I.) on the scratched 

 and polished rocks of Scotland, 66 ; on 

 Sir J. Brooke's notes on the geography 

 of the northern portion of Borneo, 89. 



Mya, on the branchial currents of, 74. 



Nasmyth (James) on an improved safety- 

 valve, 115; on a direct action steam- 

 fan for the more perfect ventilation of 

 coal-mines, 116; on an improved ap- 

 paratus for casting the specula of re- 

 flecting telescopes, 1 16. 



Negro races of the Indian Archipelago 

 and Pacific islands, on the, 86. 



Neilson (Prof. W. N.), an investigation 

 into the question — Is there really a 

 want of capital in Ireland? 106. 



New Holland, on some aboriginal tribes 

 of, 95. 



New Zealand, survey of the southern part 

 of the middle island of, 97 ; statistics 

 of, 98. 



Nicolay (Rev. C. J.) on the systematic 

 classification of water-sheds and water- 

 basins, 89. 



Nilotic discovery, a summary of recent, 84. 



Nitro-glycerine and the products of its 

 decomposition, on, 52. 



Norse, on the ethnology and archaeology 

 of the, in reference to Britain, 90. 



Organic bodies, on the action of super- 

 heated steam upon, 51. 



Orizaba in Mexico, ascent of, 98. 



Ottawa river, on the fossils from the, 63. 



Overweg (Dr.) on the discovery of Devo- 

 nian rocks in North Africa, by, 58. 



Owen (Professor) on new fossil mammalia 

 from the eocene freshwater formation 

 at Hordwell, Hants, 67; on the fossil 

 mammalia of the red crag, 67. 



Oxford, on pendulum e.xperiments at, 19. 



Pacific islands, on the negi'o races of the,86. 



Painting, on gambogic acid and the gam- 

 bogiates, and their use in artistic, 51. 



Parallelogram of mechanical magnitudes, 

 on the, 1. 



Paropamisus, on the languages of the, 89. 



Pauper labour, and the causes of pauper- 

 ism, on, 104. 



