SECTIONS. INDEX OF SUBJECTS. 



245 



Flora of Ireland, additions to the, 1846, 90. 



• of the south and west of Ireland, Prof. 



Balfour on the, 1852, 64. 



of Scotland, Prof. Balfour on the, 1855, 



100. 



of Yorkshire, on the, 1844, 70. 



Floras, fossil, of Scotland, Hugh Miller on 

 the, 1855, 83. 



Flos maris, a new British zoophyte, 1839, 

 81. 



Flour and meal ,from the potato, J. W. 

 Rogers on, 1857, 57. 



Flowers, Prof. Agardh on the structure of, 

 1833, 433. 



, lime, T. J. Pearsall on, 1853, 45. 



Flues, descending, J. IS". Hearder on their 

 application to the purposes of ventilation, 

 1841, 105. 



Fluid, on the figure of an imperfectly elastic, 

 by Prof. Hennessy, 1859, 5. 



, Prof. Stokes on the resistance of a, to 



two oscillating spheres, 1847, 6. 



, volatile, W. C. Jones on a peculiar, 



1836, 75. 



motion. Prof. W. Thomson on certain 



magnetic curves with application to the 

 theory of, 1852, 18. 



Fluids, J. S. Russell on a new law of the 

 resistance of, to the motion of floating 

 bodies, 1834, 531. 



, on the resistance of, to the motion of 



floating bodies, by J. S. Russell, 1835, 

 16. 



, on the motion of: a remarkable varia- 

 tion in the great elementary law of the 

 ratio between pressure and velocity, by 

 W. Petrie, 1854, 63. 



'_ , Prof. Hennessy on the solidification 



of, by pressure, 1857, 25. 



• , Rev. J. Brodie on a new mode of pro- 

 pelling, 1840, 190. 



, whirling, Prof. J. Thomson on some 



properties of, with their application in 

 improving the action of blowing fans, 

 centrifugal pumps, and certain kinds of 

 turbines, 1852, 130. 



, elastic. Dr. Apjohn on the specific 



heat of, 1835, 30. 



, elastic, J. P. Joule on the constitution 



of, 1848, 21. 



: , Gr. Buchanan on improvements in 



valves, stopcocks or stoppers for regulating 

 the passage of, 1850, 171. 



Fluor-spar, Sir D. Brewster on a new phe- 

 nomenon of colour in, 1838, 10. 



Fluorescence and phosphorescence of dia- 

 monds, Dr. J. H. Gladstone on the, 1859, 

 69. 



Fluorescent substances, on photographs of, 

 by Dr. J. H. Gladstone, 1859, 69. 



Fluoric acid. Dr. G. O. Rees on the exist- 

 ence of, as a constituent of certain animal 

 substances, 1839, 56. 



•' acid gas, on engraving collodion pho-^ 



tographs by means of, by C. Pooley, 1856, 

 58. 



Fluoride of calcium. Dr. G. Wilson on the 

 extent to which it is soluble in water, 

 1846, 38 ; 1850, 6S. 



Fluorine, Rev. T. Knox on the insulation of, 

 1836, 77. 



and iodine. Rev. T. Knox on the rela- 

 tive electro-negative powers of, 1843, 39. 



in plants, on, 1849, 43, 49. 



in the waters of the Firth of Forth, 



the Firth of Clyde, and the German Ocean, 

 Prof. G. Wilson on, 1849, 47. 



, Prof. G. Wilson on the presence of, 



in blood and milk, 1850, 67. 



, on the processes for the detection of, 



by Prof. G. Wilson, 1857, 61. 



Flustra Barleei, G. Busk on, 1859, 145. 



carbasea, J. G. Dalyell on the propa- 

 gation of, 1834, 603. 



Flustrella hispida. Prof. Redfern on, 1857, 

 106. 



Fly-wheel, large, erected at the Mersey Iron- 

 works, W. Clay on the, 1854, 147. 



Foetal life, on the chemistry of, by Prof. 

 Schlossberger, 1855, 135. 



Foetus, human. Dr. J. Reid on the anato- 

 mical relation of the blood-vessels of the 

 mother to those of the, 1840, 153. 



, human, without brain, heart, lungs, 



and liver, Dr. Houston on a, 1836, 122. 



Foetuses, acardiac, Dr. Houston on the cir- 

 culation of the blood in, 1843, 81. 



Fog-rings observed in America, Sir D. 

 Brewster on, 1845, 19. 



Fogs, electric, 1836, 48. 



Foliation of some metamorphic rocks in 

 Scotland, Prof. E. Forbes on the, 1854, 

 82. 



Food, Dr. Daubeny on the nutritive value 

 of different kinds of, 1847, 49. 



of artisans, on the quality of, in an 



artificially heated atmosphere, by R. Gal- 

 loway, 1855, 63. 



, on the percentage of nitrogen as an 



index to the nutritive value of, by Dr. 

 Yoelcker, 1850, 64. 



Food- stuffs, vegetable, on the current me- 

 thod for estimating the cellular matter in, 

 by T. Segelcke, 1859, 79. 



Foramen centrale, on the visual impressions 

 upon the, by Sir D. Brewster, 1848, 48. 



centrale, on the unequal sensibility of 



the, to light of different colours, by Prof* 

 J. C. Maxwell, 1856, 12. 



Foraminifera, on the British species of, by 

 Prof. W. C. Williamson, 1854, 113. 



Force of vapour, Capt. Shortrede on the, 

 1846, 16. 



Forces, on the polyhedron of, by J. T. 

 Graves, 1856, i. 



Forest trees, on the failure of bright-coloured 

 flowers in, to produce pictorial effect on 

 the landscape, unless accompanied by 

 abundance of green leaves, by Dr. G. 

 Buist, 1859, 130. ^ 



vegetation of Spain, Capt. Widdrington- 



on the, 1847, 88. 



