181 



Atmospheric pressure, mode of ob- 

 taining an increase of, 73. 



Austen (R. C.) on geological evidence 

 and inferences, 93. 



Babbage (C.) on engravings on wood, 

 154. 



Babington (C. C.) on the botany of 

 the Channel Islands, 117. 



Bache (Prof.) on the effect of de- 

 flected currents of air on the quan- 

 tity of rain collected by a rain- 

 gauge, 25. 



Backhouse (E.) on the annual ap- 

 pearance on the Durham coast of 

 some of the Lestris tribe, 108. 



Baer (Prof.) on the frozen soil of Si- 

 beria, 96. 



, sketch of the Russian expedi- 

 tions to Novai'a Zeml'ia, 96. 



Bannester (S.) on the population of 

 New Zealand, 167. 



Barbel, on the pharyngeal tooth of 

 the, 143. 



Barnes (Dr.) on abscess of the lungs, 

 134. 



Barometrical instrument for travellers 

 in mountainous districts, 37. 



Bellingham (Dr.) on the occurrence of 

 crystals in the human intestines, 1 34 . 



Berwick coal-field, on the, 76. 

 -Bicyanide with binoxide of mercury, 

 a new compound of, 59. 



Bird (Dr. G.) on some of the products 

 obtained by the action of nitric acid 

 on alcohol, 55. 



on the artificial formation of a 



basic chloride of copper by voltaic 

 influence, 56. 



on the deposition of metallic 



copper from its solutions, 57. 



Blackwall (T. E.) on the production 

 of crystals of silver, 74. 



Blake (J.) on the action of substances 

 injected into the veins, 129. 



Botanj', 116. 



Bowring (Dr.) on plague and qua- 

 rantine, 120. 



Bradypus didactylus, 145. 



Breunner (Count) on the use of wire 

 ropes in deep mines, 150. 



Brewster (Sir. D.) on an ocular par- 

 allax in vision, and on the law of 

 visible direction, 7- 



on a new phenomena of colour in 



certain specimens of fluor spar, 10. 



Brewster (Sir D.) on new phenomena 

 of diffraction, 12. 



on some preparations of the 



eye by Mr. Clay Wallace, 14. 



on the combined action of 



grooved metallic and transparent 

 surfaces upon light, 13. 



on a new kind of polarity in ho- 

 mogeneous Ught, 13. 



on the fossil teeth of the Sauroid 



fishes, 90. 



Bridges, oblique, on, 152. 



Bridges oftimber, on constructing, 150. 



Brine-spring, carbonic acid gas emit- 

 ted by a, 28. 



Brisbane (Sir Thos. M.) on the dif- 

 ference of longitude between Lon- 

 don and Edinburgh, 20. 



Buddie (J.) on the Newcastle coal- 

 field, 74. 



Cadiz, statistics of vitality in, 174. 



Carbon, specific gravity of the vapour 

 of, 64. 



Carbon and hydrogen, a new com- 

 pound of, 72. 



Carbonate of ammonia, commercial, 

 on the constitution of, 63. 



Carbonic acid, on solidifying, 70. 



Carbonic acid gas emitted by a brine- 

 spring, 28. 



Carcharias Megalodon, 141. 



Cargill (Mr.) on educational statistics 

 of Newcastle, 165. 



Carlisle, on the red sandstone of, 78. 



Cape of Good Hope, observations on 

 stars and nebulae at, 17. 



Cattle, wild, of Chillingham Park, on 

 the, 100. 



Caustic potass, chemical action of 

 light on, 61. 



Cefn cave, on the remains found in, 87. 



Channel Islands, on the botany of the, 

 117. 



Charlton (Dr.) on Tetrao Rakelhahn, 

 107. 



Charlton (W. H.), statistics of Bel- 

 lingham in Northumberland, 168. 



Cheddar, Somersetshire, description 

 of a cave at, 85. 



Cheirotherium, its footsteps in the 

 stone quarries of Storeton Hill, 85. 



Chemical action, influence of voltaic 

 combination on, 69. 



Chemical combinations, on, 68. 



Chemistry, 39. 



