BECflONS.-— INDEX OF SUBJECTS. 



307 



(Sea-urchins of Orkney and Shetland, Prof. 



E. Forbes and J. Goodsir on the, 1839, 80. 

 Sea walls and embankments, J. S. Russell 



on the construction of, 1830, 133. 

 Sea-water, and the effects of variation in its 



currents, Prof.Forehhammeron, 1846,5i. 

 •^ ^ Dr. G. Wilson on the presence of 



fluorine in, 1849, 47. 



, on preserving the balance between 



' vegetable and animal organisms in, by 



E. Warington, 1853, 72. 

 — — , Dr. G. Wilson on the artificial prepa- 

 ration of, for marine vivaria, 1854, 77. 

 * — — , on the influence of coloured glass on the 



growth of plants in, by E, Warington, 1854, 



103. 

 • , experiments to prevent corrosion by, 



by E. Davy, 1835, 34, 36. 

 * , its corrosive action on copper, by Dr. 



J. Percy, 1849, 39. 

 ■ and springs, Dr. Daubeny on the geo- 

 logical inferences to be deduced from the 



chemical constitution of, 1831-32, 592. 

 Sea-weeds, E. G. Schweitzer on the analysis 



of, 1845, 37. 

 •• , notice of the natural printing of, on 



the rocks in the vicinity of Stromness, by 



C. W. Peach, 1856, 90. 

 Seal, skeleton of a, from the pleistocene 



clays of Stratheden, Fifeshire, D. Page on 



the, 1858, 103. 

 Sectors, coloured, rapidly revolving, Prof. 



Stevelly on the occasional distinct vision 



of, 1850, 21. 

 Seeds, Prof. E. Solly on the influence of 



galvanic electricity on the germination of, 



1845, 69. 

 , E. Himt on a method of accelerating 



the germination of, 1853, 63* 

 ■ , on the action of light on the germina- 

 tion of, by Dr. Daubeny, 1855, 56. 

 ■ , exposed to a temperature of 198° below 



zero of Fahrenheit's scale, not losing the 



power of germination, Prof. Wartraann 



on, 1860, 110. 

 Semaphore, electric, for lise on railways, 



W S. Ward on an, 1853, 131. 

 Semitic inscriptions, Eev. Dr. E. Hincks on, 



1860, 156. 

 ■ language, Eev. Dr. E. Hincks on the, 



1857,134- 

 ■^ and Indo-Germanic languages, Eev. 



Prof. Jarrett on the, 1847, 122. 

 Sensation, Dr. Fowler on the relation of, to 



the higher mental processes, 1846, 92. 

 Senses, on the organs of the, and on the 



mental perceptive faculties connected with 



them, by W. E. C. Nourse, 1859, 171. 

 Sensibility, muscular, G. H. Lewes on, 1869, 



167. 

 Sepia, fossil, in the lias of Gloucestershire^ 



Prof. Buckman on remains of the, 1848,66. 

 Sepiadse, colossal, Col. H. Smith on the, 



1841, 73. 

 Sepiola, Prof. E. Forbes on a species of, 



new to Britain, 1852, 73. 



Serpents, on the fascinating power of< by J. 

 Braid, 1855, 120. 



Sertularia, J. G. Dalyell on the iaropagatiori 

 of, 1834, 601. 



tamarisca, on the reproductive organs 



of, by Prof. AlUnan, 1858, 119. 



Sertulariadae, Prof. Allman on the medusoid 

 structxire in the reproductive gemmse of 

 the, 1852, 70. 



Sertularian zoophytes from Port Natal, 

 Algoa Bay, and Table Bay, in South 

 Africa, G. Busk on, 1850, 118. 



zoophytes, Prof. Wyville Thomson on 



the character of the, 1852, 78. 



Sewerage of manufacturing towns, Dr. F. 

 Wrightson on the, 1854, 77. 



Sewers and cesspools, on the alkaline emana- 

 tions from, by Dr. W. Odling, 1856, 57. 



Sewing-machines, on their efiects on pro- 

 duction, prices, and wages, in Glasgow, 

 by Dr. J. Strang, 1858, 198. 



Shark, on the vitreous humour of the eye of 

 a, by Sir J. F. W. Herschel, 1838, 15. 



, great, of the red crag, J. S. Bowerbank 



on the probable dimensions of the,1851,54. 



Shea butter-tree growing in Africa, J. F. 

 Duncan on the, 1846, 90. 



Sheet-metal moulding machine, E. Eoberts 

 on the, 1849, 126. 



Shell-bed, marine, of the South Wales coal- 

 basin, G. B. Bevan on the, 1858, 80. 



Shell-structure in some species of Pecten, 

 Dr. Dickie on the, 1859, 147. 



Shell of Cardium edule (common cockle), 

 Dr. T. L. Phipson on the composition of 

 the, 1859, 77. 



Shells, Dr. W. B. Carpenter on the micro- 

 scopic structure of, 1843, 71. 



of the Azores and St. Helena, Prof. E. 



Forbes on the, 1851, 76. 



, British, Dr. J. E. Gray on Neara, a 



new genus of, 1838, 1 10. 



, British, rare and recent, 1848, 71* 



found in the alluvial deposits of Bel- 

 fast, J. Grainger on the, 1852, 74. 



of the river Conway, E. Garner on the, 



1856, 92. 



from Mazatlan, P. P. Carpenter on, 



1854, 107. 



of the genus Conus, Sir C. Lyell on 



two species of, in the lias or inferior oolite 

 of Caen, Normandy, 1840, no. 



of the newer pleiocene deposits, J. 



Smith on, 1838, 87. 



, new, J. Smith on, 1837, 100. 



, land and freshwater, found near Not- 

 tingham, E. J. Lowe on the, 1851, 80. 



, land, freshwater, and marine, oljtained 



in sinking a well on the banks of the 

 Avon, notice of, by P. P. Carpenter, 1854, 

 78. 



, marine, discovered in diluvial drift, 



J. Trimmer on, 1838, 86. 



, recent marine, in a bed of sand on 



the summit of a granite hill on the coast 

 of Mayo, Sir E. Griffith on, 1843, 50. 

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