1054 



INDEX. 



affected, 958 ; oxalic acid in, indicative 



of disease, 979. 

 Urine, second appendix to a paper on the 



variations of the acidity of ; effects of 



volatile distinct from those of fixed 



alkah, 959. 

 Usuic acid, 738. 



Uterus, dissections of the nerves of, 562 ; 

 nervous gangha of, 566. 



, further researches on nervous sy- 

 stem of, 609. 



— , virgin, gangha and nerves of, 661. 

 , structure and use of the hgamentum 

 rotundum of; changes in, daring utero- 

 gestation, 936 ; each fcetus furnished 

 with its own set of expulsorv fibres, 

 937. 



Vanessa urticse, lost parts reproduced in, 

 516. 



Vapour, elastic force of, at different tem- 

 peratures, 738. 



Varnish, to protect the iron of ships, pre- 

 vents electro-chemical action, 754. 



Vegetable juices, action of rays on, 569. 



Vegeto-alkali, artificial formation of, 542. 



Veins, development of the great anterior 

 in man and mammaUa ; analogies of the 

 coronary sinus, left vena cava, and left 

 vena azygos in different animals ; meta- 

 morphosis of, in the embryos of the 

 Sheep, Guinea pig and the human 

 foetus ; classification of subordinate 

 groups, 843 ; the Cuvlerian fold ; trans- 

 verse branch across the neck character- 

 istic of all mammalia ; three principal 

 groups of, 844, 



Vesicular vapours, microscopic observa- 

 tions on; consist of minute globules, 

 628. 



Vision, theorj' of, 565. 



Voice, human, physiology- of, 624 ; com- 

 bines actions of various instruments, 

 625. 



Volcanic rocks, phosphoric acid, compo- 

 nent of, 509. 



Voltaic arc, researches on ; influence of 

 magnetism on, 659 ; particles of metal 

 transported by ; colour produced in the 

 process ; sound emitted by, 660. 



— — batterv, new fonn of highest power, 

 661. 



— — , application of carbon as ne- 

 gative plate of, 928. 



' cuiTcnt, produces an electi'ogenic 



condition of the nerves, 668,674. 



— — ignition, phenomena of, 657. 



. , effect of smrounding media 



on, 783. 



. , coohng effects of hydrogen in 



cases of, 789. 



Voltameter, reabsorption of mixed gases 

 in, 667. 



Waller (A.), microscopic observations on 

 the so-called vesicular vapours of water, 

 &c., 628. 



, minute structure of the organ of 



taste in vertebrate animals, p. 1, 751. 



, minute examination of the organ 



of taste in Man, 803. 



, experiments on the section of the 



glossopharyngeal and hypoglossal 

 nerves of the frog, and observations on 

 the alterations produced thereby in the 

 structure of their primitive fibres, 

 924. 



Ward (W. S.) on some phenomena and 

 motions of metals under the influence 

 of magnetic force, 855. 



Water battery, description of an extensive 

 series of, 500 ; additional note on, 507. 



Water, spherules of, in vapour, 628 ; theory 

 of its decomposition, 629. 



, decomposed into its constituents 



by heat, 657 ; how affected by catalysis ; 

 composed or decomposed by ignited 

 platinum ; experiments on, with iri- 

 dium, osmium and sihca; spheroidal 

 state of, intermediate between that of 

 ebullition and decomposition, 658. 



, decomposed by a new form of vol- 

 taic battery, 661. 



, solvent property of, when impreg- 

 nated vnth carbonic acid, 674. 



, on the gaseous transformation of, 



by means of a pile in two separate com- 

 partments, having no other electric 

 communication between them besides 

 conducting wires of copper, and giving, 

 in the one oxygen alone, and hydrogen 

 alone in the other ; water not a com- 

 pound or oxide, but a first element, 

 911. 



Waterston (J. J.) on the physics of media 

 that are composed of free and perfectly 

 elastic molecules in a state of motion, 

 604. 



Watkins (Rev. C. F.), account of the 

 aurora boreahs of the 1 7th of November 

 1848, 809. 



Watt (James), bust of, 482, 520. 



Wax, chemical researches on the nature ' 

 of, 748. 



, from China, chemical nature of, 



754 ; constituents and analysis of, 

 755. 



Weber (W.), his electro-dynamometer, 

 863. 



Weld (C. R.), appointed Assist. Sec, 

 496. 



— — , history of the mace given to the 



