INDEX. 



Mollusca, on the structure of the ske- 

 letons or hard parts of the, 435. 



Monobasic salts, 102. 



Moon, new method of determhiing the 

 longitude by an absolute altitude of, 

 52. 



— — , on the influence of, on the at- 

 mospheric pressure, 395. 



Morichini (Prof), notice of the late, 

 18. 



Mortality, on the laws of, 115. 

 Moseley (Rev. H.) on the geometrical 



forms of turbinated and discoid shells, 



79. 



■■ on a calculating machine, 362. 



on the theory of machines, 318. 



Motion, rotatory, 66. 

 Mucus-globules, compared with cor- 

 puscles of the blood, 324. 

 Mudesous and mudesic acids, 239. 

 Munster (Earl of) notice of the late, 

 414. 



Murchison (R. T.) description of Cog- 

 gan's self-registering thermometer 

 and barometer, 72. 



Muscle, facts observed in the forma- 

 tion and structure of, 364. 



, voluntary, on the minute struc- 

 ture and movements of, 244, 301 ; 

 the contraction of a muscle is the 

 essential cause of its rupture, 301 ; 

 there is no repellent force between 

 the contractile elements of muscular 

 fibre, 301. 



Muscular tissue compared with cor- 

 puscles of the blood, 324. 



Myriapoda, on the organs of repro- 

 duction and the development of 

 the, 326. 



• , on the circulation of the blood 



in the, 458. 



Naples, barometrical observations 

 taken at, 303. 



Necker (L. A.), Appercu sur une ma- 

 niere nouvelle d'envisager la theorie 

 cristallographique dans le but d'eta- 

 blir les rapports de celle-ci avec la 

 forme spherique ou elliptique, des 

 molecules, ainsi qu'avec I'effet des 

 milieux sur la forme cristalline, 116. 



Nerves, on the, 434. 



, physiological inferences derived 



from human and comparative ana- 

 tomy respecting the origin of the, 

 472. 



»— of the gravid uterus, on the, 189. 



Nervous force, experimental relation 

 of, to electric force, 112. 



• ganglia of the uterus, 321, 395. 



~ system, on tlie, 218; the spinal 



nerves, 218; respiratory system of, 

 218 ; supply of blood to the nerves 

 of the respiratory system, 218. 



tissue, compared with corpuscles 



of the blood, 324. 



Nervous and circulatory systems in 

 articulated animals, 458. 



Newbold (Capt.) on the Regar or black 

 cotton soil of India, 53. 



Newbold (T.J.) on the diamond mines 

 of Golconda, 280. 



Newport (G.) on the organs of repro- 

 duction, and on the development of 

 the Myriapoda, 326. 



on the structure and development 



of the nervous and circulatory sy- 

 stems in articulated animals, 458. 



Newton's (Sir I.) solutions of the pro- 

 blem of the astronomical refractions, 

 59,60. 



, an original portrait of, presented 



to the Royal Society by Prof. Vig- 



nolles, 296. 

 , the autograph of the Principia 



in the possession of the Royal So- 



ciet}^, 253, 335. 

 Niger Expedition, 253, 380,401. 

 Nitrates, conversion of into chlorides, 



applied to the determination of 



equivalent numbers, 119. 

 Nitrogen, its influence on the growth 



of plants, 66, 148. 

 , its evolution during the growth 



of plants, 70. 

 «— — , its influence in promoting vege- 

 table decomposition, 148. 

 and carbon, compound bodies, 



472. 



Nobili's plate of colours, on, 195. 

 Northampton (Marquis of), address 



at Anniversary Meeting. Nov. 21, 



1839, 168. 

 , address at Anniversary Meeting, 



Nov. 30, 1840, 252. 

 , letter to the Royal Society, 



read at the Anniversary Meeting, 



Nov. 30, 1841, 331. 

 , address at Anniversary Meet- 

 ing, Nov. 30, 1 842, 400. 

 Norton (Capt. J.), on a percussion 



shell to explode at the bottom of the 



sea, 248. 



Nutation and precession, phenomena 



