192 



SECTIONS. INDEX OP AUTHORS. 



Thomson (Prof. W.) on the reduction of 

 periodical variations of underground tem- 

 perature, with applications to the Edin- 

 burgh observations, 1859, 54. 



— — on atmospheric electricity, 1860, 53. 



Thomson (Prof. Wyville T. C.) on the ap- 

 plication of photography to the compound 

 microscope, 1850, 126. 



on the character of the Sertularian 



zoophytes, 1852, 78. 



on some Ayrshire fossils, 1853, 61. 



* on the fauna of the lower Silurians 



of the south of Scotland, 1855, 99. 



* on the reproductive zooids of Coma- 

 tula rosacea, 1857, 108. 



*Thornton (E.), ascent ofOrizaba in Mexico, 

 1851, 98. 



*TnoRNTON (J.) on the friction of discs in 

 water, and on the experiments to be made 

 on centrifugal pumps, 1854, 163. 



TnosT (C. G-.) on the rocks and minerals in 

 the property of the Marquis of Breadal- 

 bane, 1859, 125. 



*TiiRELKELD (Rcv. J.) ou the condition of 

 the natives of Australia, 1857, 1 54. 



*Thudicuum (Dr.) on thiotherine, 1860, 

 72. 



on the physiological relations of the 



colouring matter of the bile, 1860, 147. 



*TnuRNAM (Dr.) on the scientific cranio- 

 scopy of Prof. Carus, 1844, 86. 



on the relative liability of the two 



sexes to insanity, 1844, 92. 



on the liabihty to insanity at different 



ages, 1845, 87. 



, notice of a case of spina bifida, 1845, 



86. 



TnuRNELL (G-.) on a mode of constructing 

 the rectangular hyperbola by points, 

 1858, 5. 



Thwaites (G. H. K.) on conjugation in the 

 Diatomaceae, 1847, 87. 



on an apparently undescribed state of 



the Palmelleoe, with observations on 

 gemmation in the lower tribes of plants, 

 1848, 87. 



*TicKELL (Capt.) on surveys in Arracan, 

 1853, 92. 



TiLLEY (Prof. T.) on a peculiar condition 

 of zinc, 1844, 35. 



on the oil of assafoetida, 1845, 33. 



Tilt (Dr. E. J.) on the causes which ad- 

 vance or retard the appearance of first 

 menstruation in woman, with a synop- 

 tical table showing the mean age of first 

 menstruation in hot, temperate, and cold 

 climates, 1850, 135. 



on ascertaining the number and condi- 

 tion of the infantile idiots in the United 

 Kingdom, 1851, 109. 



TooRN (A. Van der), table of the propor- 

 tions of anhydrous acid in acetic acid of 

 every degree of concentration, compared 

 with the specific gravities, 1834, 571. 



*Topp (A.) on models of fire-escapes, boat- 

 lowering apparatus, &c., 1855, 244. 



ToRBOCK (E.) on uterine haemorrhage and 

 mode of arresting it, 1838, 133. 



Towler (Q-. V.) on the cause of magnetism, 

 1846, 33 ; 1859, 28. 



Town SEND (Mr.), notes on the Australians, 



1851, 95. 



TowNSEND (R. W.) on the miuerals of Cork, 

 1843, 38. 



on an instrument for exhibiting the 



colours of liquids by transmitted light, 



1852, 20. 



on refracted lines of cleavage seen in 



the slate-rocks of Ballyrizora in the co. 

 of Cork, 1853, 61. 



TowsoN (J. T.) on the inefficiency of the 

 aids of science in connexion with the 

 compasses of iron ships, 1854, 55. 



* on modifications of great-circle sail- 

 ing, 1854, 126. 



* on the means proposed by the Liver- 

 pool Compass Committee for carrying out 

 investigations relative to the laws which 

 govern the deviation of the compass, 1855, 

 22. 



on changes of deviation of the com- 

 pass on board iron ships by "heeling," 

 with experiments on board the City o£ 

 Baltimore, Aphrodite, Simla, and Slieve 

 Donard, 1859, 28. 



Traill (Dr. J. S.) on the laryngeal sac of 

 the reindeer, 1834, 623. 



on the geological structure of the 



Orkney Islands, 1834, 644. 



on the geology of Spain, 1835, 61 ; 



1837, 70. 



on the aurora borealis, 1836, 32. 



* , notice of fossil fishes from the Caith- 

 ness schist of Pomona (Orkneys) and 

 from Clashbennie, 1836, 95. 



on an antimonial compound applicable 



as a pigment, 1837, 58. 



, notice of Argas Persicus, a species of 



bug, 1837, 98. 



Traill (Dr. W. S.), experiments on the 

 intensity of terrestrial magnetism at 

 Liverpool and Manchester, 1831-32, 



559- 



Train (G. F.) on street railways as used in 

 the United States, 1860, 215. 



Trevelyan (W. C.) on the phacnogamous 

 plants of the Faroe Islands, 1834, 598. 



— — on an undescribed fossil wood (Penuce 

 Ferroensis) from Faroe, 1834, 666. 



* exhibited a living specimen of the 



Coluber natrix of Italian authors, also 

 Polyodon folium of North America, a 

 collection of Neapolitan insects, and an 

 Urtica gathered in the island of Elba, 



1838, 116. 



on the discovery of guano in the 



Faroe Islands, 1845, 64. 



Trimmer (J.) on diluvial drift containing 

 shells and remains of animals in Cefn 

 Cave, 1838, 86. 



Tripe (Dr.) on some specimens of Pontia, 

 1841, 72. 



