SECTIONS. INDEX OF SUBJECTS. 



233 



Diamagnetic bodies, experimental demon- 

 stration of the polarity of, by Prof. Tyn- 

 dall, 1855, 22. 



force, Prof. TyndaU on the, 1854, 



Diamagnetism and magnecrystallic action, 



Prof. Tyndall on, 1851, 15. 

 , Prof. Matteucci on the laws of, 



1852, 6. 

 Diamond, J. P. Gassiot on a peculiar form 



produced in a, when under the influence 



of the voltaic arc, 1850, 53. 

 , observations on the, by Sir D. Brew- 

 ster, 1852, 41. 

 , Sir D. Brewster on a new structure in 



the, 1837, 13. 

 , Prof. Eogers on the oxidation of the, 



in the liquid way, 1848, 60. 

 ~— — slab supposed to have been cut from 



the Koh-i-noor, Dr. Beke on a, 1851, 



44. 

 , Koh-i-noor, Prof. Tennant on the, 



1852, 39. 



, Koh-i-noor, Prof. Tennant on the re- 

 cutting of the, 1854, 75. 



, three specimens of, which had been 



subjected to intense heat. Prof. Faraday 

 on, 1847, 50. 



Diamonds, on the fluorescence and phos- 

 phorescence of, by Dr. J. H. Gladstone, 

 1859, 69. 



Dianthus plumarius, Linn., new to the En- 

 gUsh flora, 1839, 92. 



Diaphragm, changing, for double achro- 

 matic combinations, A. Claudet on a, 

 1859, 62, 



Diarrhoea, Dr. Laycock on diagrams show- 

 ing the mortality of, concurrently with 

 progressive increase of temperature in 

 London, 1846, 94. 



Diarseniate of lead, native, of Caldbeck 

 FeU, Prof. T. Thomson on, 1838, 46. 



Diatomacese, G. H. K. Thwaites on conju- 

 gation in the, 1847, 87. 



, on new forms of, from the Firth of 



Clyde, by Prof. Gregory, 1856, 83. 



found in chalk, on the forms of, by 



Eev. E. O'Meara, 1857, 97. 



found in the neighbourhood of Hull, 



J. D. Sollitt and E. Harrison on the, 



1853, 63. 



Diatomaceous deposit found in the island 

 of Lewis, 1859, 133. 



vegetation of the Antarctic ocean. Dr. 



J. D. Hooker on the, 1847, 83. 



Dichobune ovinum, Ow., on a new species 

 of, from the upper eocene of Hordwell, 

 Hants, by Prof. Owen, 1856, 72. 



Dichodon cuspidatus, from the upper eocene 

 of the Isle of Wight and HordweU, 

 Hants, Prof. Owen on the, 1856, 72. 



Dichroism of the palladio-chlorides of po- 

 tassium and ammonium. Sir D. Brewster 

 on the, 1842, 13. 



of a solution of stramonium in ether, 



Sir D. Brewster on the, 1842, 14. 



Dichromatic phenomena among solutions, 

 Dr. J. H. Gladstone on, 1856, 10. 



Dicoryne stricta, a new genus and species 

 of the Tubulariadas, Prof. Allman on, 



1859, 142. 



Dictyodus, fossil, Prof. Owen on the teeth 

 of, 1838, 142. 



Didymium, a new metal. Prof. Mosander on, 

 1843, 25. 



Difierential wheel, triple, J. Lothian on a, 

 1847, 18. 



Diffraction, Sir D. Brewster on new pheno- 

 mena of, 1838, 12. 



, Sir D. Brewster on certain pheno- 

 mena of, 1852, 24. 



bands produced by the edges of thin 



plates, Sir D. Brewster on the, 1847, 



33- 

 Difi'usion, liquid, Prof. T. Graham on, 1851, 



47- 

 Digestion, experiments on, by Dr.G. Harley, 



1858, 135. 

 Digestive organs. Dr. E. D. Thomson on the 



chemistry of the, 1836, 117. 

 Digging machine, B. Samuelson on a, 1853, 



121. 

 Diluvial drift containing shells and re- 

 mains of animals, J. Trimmer on, 1838, 



86. 

 Dimorphodon, a new ggnus of Pterodac- 



tyle, Prof. Owen on, 1858, 97. 

 Dimyaria, on the families of, adopted by 



Prof. E. Forbes and Mr. Hanley, 1847, 



76. 

 Dingle district, Ireland, J. W. Salter on the 



fossils of the, 1857, 89. 

 Promontory, Ireland, Prof. Harkness 



on the geology of the, 1855, 83. 

 Promontory, Ireland, J. B. Jukes on 



the geological structure of the, 1857, 70; 



J. W. Salter on the fossils of the, 71. 

 Diomedea exulans, on the peculiar deve- 

 lopment of the Vermis cerebelli in the, 



by Prof. Eetzius, 1855, 133. 

 Diophantine analysis, on the possible and 



impossible cases of quadratic duplicate 



equalities in the, by M. ColUns, 1855, 2. 

 Dip-circle, induction, J. A. Broun on a new, 



1860, 23. 



Diphydffi, Prof Huxley on the, 1851, 78. 



Dipodomys, or Jerboa-rat, a new genus, by 

 Dr. J. E. Gray, 1841, 70. 



PhiUipii, 1841, 70. 



Dipping-needle, effect of three iron cylin- 

 ders upon the, when placed in a given 

 position, 1851, 9. 



, new, 1835, 25. 



, Eev. Dr. H. Lloyd on a method of 



observing the dip and the force by the 

 same observation, 1834, 557. 



, Eev. Dr. Scoresby on a source of 



error in experiments with the, 1833, 

 412. 



Disc, rotating, of M. Arago, on the dis- 

 tribution of electrical currents in the, 

 by Prof. Matteucci, 1853, 5. 



