INDEX. 



503 



Melloni (M.), experiments on radiant 

 heat, 381. 



Miller (Rev. W. H.) on the con- 

 struction of a new barometer, 

 414. 



Mineral veins, on the state of know- 

 ledge respecting, 1. 



Mines, on the depths of, 427. 



Morphology, on the theor}' of, 50. 



Mytilus crenatus, on the naturaliza- 

 tion in England of, 448. 



Naval architecture, on, 430. 

 Needle, on its variation, 106; on the 



change in its direction, 107; on 



the diurnal change in the varia- 

 tion, 108. 

 , dipping, on a peculiar source 



of error in experiments with, 



412. 

 ■— — , magnetic, on the dip of, 



109 ; on the variation of the dip, 



110. 

 Nerves, on the, 80. 

 Nervous system, on the physiology 



of the, 59 ; on the structure and 



functions of the, 449. 

 Newman (J.) on a new method of 



constructing a portable barometer, 



417. 



CErsted (Prof) on the compressibi- 

 lity of water, 353. 



Optics, on the characteristic function' 

 in, SCO. 



Owen (J.) on naval architecture, 

 430. 



Peacock (Rev. G.), report on certain 

 branches of analysis, 185. 



Phillips (J.), experiments on the 

 quantities of rain falling at differ- 

 ent elevations, 401. 



Physiology of the nervous system, 

 59 ; of the brain, 63. 



Plants, on the circulation in, 32 ; 

 on the structure of the axis, 33 ; 

 on the cavise of the formation of 

 wood, 36 ; on the arrangement of 

 leaves, 40 ; on the structure of 

 leaves, 41 ; on the anther, &c., 



43 ; on the origin of the pollen, 



44 ; on the fertilization, 45 ; on 

 the origin of organs, 49 ; on the 

 theory of morphology, 50 ; on the 



theory of gradual development, 

 53 ; on their irritability, 54 ; on 

 the action of coloured light on, 54 ; 

 on the various colours of, 55 ; on 

 excretions, 56 ; on the structure of 

 the flower, 433 ; on the action of 

 light upon, 436. 



Pollen, on the origin of, 44. 



Potter (R. jun.) on the power of glass 

 of antimon}^ to reflect light, 377 ; 

 on a phasnomenon in the interfer- 

 ence of light, 378 ; on an arch of 

 the aurora borealis, 401. 



Powell (Rev. B.) on the dispersive 

 powers of the media of the eye, in 

 connexion with its achromatism, 

 374. 



Power (Rev. J.), inquiry into the 

 cause of endosmose and exosmose, 

 391. 



Prideaux (J.) on thermo-electricity, 

 384. 



Rain, experiments on the quantities 



of falling at different elevations, 



401. 

 Refraction, conical, on, 370. 

 Rennie (G.), report on hydraulics as 



a branch of engineering, 153. 

 Respiration, action of the medulla 



spinalis and oblongata on, 73. 



Saurians, fossil, new species of, 440. 



Scoresby (Rev. W.) on a j'eculiar 

 source of error in experiments 

 with the dipping-needle, 412. 



Sedgwick (Prof), his addresses, x. 

 xxvii. 



Solar rays, on an instrument for 

 measuring their heating power, 

 379 ; on the diminution of their 

 intensity in traversing the atmo- 

 sphere, 380 ; on an instrument for 

 measuring the heating effect of, 

 418. 



Spiders, on the structure and func- 

 tions of, 444. 



Spinal marrow, on the, 74. 



Stars, falling, modeof observing,490. 



Statistical Society of London, objects 

 and plan of, 493. 



Steam-engine for pumping water, 

 421. 



Strength of materials, on, 93, 103, 

 421, 423. 



