1048 



INDEX. 



Moon, influence of, on atmospheric pres- 

 sure, 663. 



, the light of, cause of red tints in 



aurora boreahs, 791. 

 Mortahtv, practical extension of the law 



of, 601. 



Moseley (Rev. H.) on dynamical stability, 

 and on the oscillations of floating bo- 

 dies, 954, 



Mm-chisou (Su- R.), Copley medal 

 awarded to, 871. 



Muscle, ultimate fibril of, 514. 



Muscles, action of in breathing, 602. 



, their action during respu-ation de- 

 monstrated by experiment, 691. 



, discharge galvanic force, 733; 



origin of the galvanism in, 734. 



; cannot be used like metaUic wires 



in chemical decomposition, 902 ; con- 

 tractions in, produced by electric cur- 

 rents, 903. 



Myriapoda, reproduction of lost parts in, 

 516. 



Myricine, a constituent of bees'-wax, 

 contains palmitic oil, and melissine ; 

 melissic acid obtained from the latter ; 

 formulse and analyses of, 768. 



Myohne, in cells of muscular fibrils, 514. 



Napier (M.), obituary notice of, 710, 



Napier (S,) on a sudden rise and fall of the 

 sea in the dock-yard creek, Malta, 495. 



Nebulae, observations on, 514. 



, on the, 962 ; spiral arrange- 

 ment in ; structure of, seen to be 

 more complex with increase of optical 

 powder, 964 ; remarkable annular form 

 of, 965 ; groups of, 966. 



Nerve, optic and auditory, development 

 of, 912 ; similarity in origin of audi- 

 tory membrane and retina, 915. 



Nerves, of the virgin uterus, 661, 



, found in the muscular structure of 



the heart, 675 ; they increase in size ; 

 larger on the left than on the right 

 side of the heart, 676 ; accompany the 

 coronary arteries, 789, 790. 



, pain produced by inverse electric 



current in, 904. 



, of the Frog, experiments on the 



section of the glossophai-yngeal and 

 hypoglossal, 924. 



Nervous ganglia of the uterus, 566, 



system, conditions induced in, by a 



voltaic current, 667 ; effects of certain 

 physical and chemical agents on, 667, 

 674. 



of the heart, 675. 



, the brain the sole centre of ; 



action of the gray matter of, 753 ; 



a reservoir of nervous power, 754. 



Newbold (Lieut.) on the temperature of 

 the springs, wells and rivers of India 

 and Egypt, and of the sea and table 

 lands within the Tropics, with a few 

 remarks on M, Boussingault's mode of 

 ascertaining the mean temperature of 

 equinoctial regions, 502. 



Newport (G.), on the reproduction of lost 

 parts in Myriapoda and Insects, 516. 



on the structure and development 



of the blood, 544. 



., on the impregnation of the ovum 



in the Amphibia, 971. 



Newton (Sir L), on his method of finding 

 the hmits of the roots of equations, 630. 

 , Newtonian dial, account of, 513. 



Nitrification, spontaneous, 601, 



Nitroprussides, a new class of salts, 846 ; 

 reactions produced on yellow prusside 

 of potassium, production of oxamide, 

 distinct character of, coloured preci- 

 pitates produced by, 846 ; complex 

 formula of ; relation of to ordinary 

 prussides ; bibasic, one equivalent of 

 cvanogen replaced by one of nitrous 

 oxide, 847. 



Northampton (Lord), address of, June 9, 

 1848, 762. 



Northumberland (Duke of), obituary no- 

 tice of, 704. 



Norton (W. A,), promise of results of a 

 mathematical investigation of a nev*' 

 theory of teiTCstrial magnetism, 673. 



, on terrestrial magnetism, 730. 



Notommata, infusory animalcule alUed 

 to, 800. 



Numbers, conditions under which they 

 are divisible by the primes, 665. 



Observatoiy, central physical, at St. Pe- 

 tersburg, estabUshment of, 908. 



Ohm (G, S.), his molecular physics, 865, 



Oils, produced by the action of sulphuric 

 acid upon various classes of vegetables, 

 939 ; fucusol derived from algas ; iso- 

 meric with furfurol, 940. 



Orcin, 738. 



Ores, silver, amalgamation of, 509. 



Organic bases, volatile, molecular consti- 

 tution of, 904. 



Orsellesic acid, 736. 



Orselliate of barv^ta, 735. 



Orsellic acid, its constituents, 735. 



Ouseley(Sir Gore), obituaiy notice of, 527. 



Ovum, impregnation of, in the amphibia, 

 971 ; segmentation a proof of impreg- 

 nation, 972 ; spermatozoon the agent 

 of impregnation, 973 ; ovum not pene- 

 trated by the spennatozoon, 974 ; im- 

 pregnation commenced at the instant 

 of contact ; experiments on, with che- 



