154 



INDEX II. 



Water of springs, their temperature, 7 ; 

 periodical variations of temperature, 

 9 ; secular variation of temperature, 

 9; organic matter, 30; origin of 

 springs, 58 ; products of springs, 56; 

 springs exerting a peculiar action 

 upon the animal oeconomy, 44. 



, mineral, classification of, 14 ; in- 

 gredients found in, 11, 14; gases 

 evolved from, 36 ; on analysing, 47 ; 

 improvements in chemical analysis, 

 48 ; on the detection of organic mat- 

 ter in, 51 ; apparatus for determin- 

 ing the quality and amount of the 

 gases combined with, 52 ; factitious, 

 53 ; works on, 76. 



Water, instruments for drawing it up 

 from great depths, 5. 



, its colouring matter explained, 



35. 



, salt springs, origin of, 74. 



, thermal springs, on the term 



' thermal', 7 ; origin of, 59 ; geolo- 

 gical position of, 62 ; theories of, 

 67 ; catalogue of, 80. 



Williams (Dr. C. J. B.), report on the 

 motions and sounds of the heart, 

 261. 



Zoology of North America, 121 ; some 

 remarks on, 223. 



INDEX II. 



MISCELLANEOUS COMMUNICATIONS TO THE 

 SECTIONS. 



Absorption, on, 119. 



Adams (R.) on the bones in chronic 



rheumatism, 123. 

 on the new circulating channels in 



double popliteal aneurism, 123. 

 Addams (R.) on the vibration of bells, 



36. 

 Alcock (Mr.) on taste being dependent 



on nerves from the spheno-palatine 



ganglion, 124. 

 on the anatomy of the fifth pair 



of nerves, 124. 

 Alcyonella Stagnorum, on, 104. 

 Algebraic geometry, on the doubtful 



algebraic sign in certain formulae of. 



Ammonia, lithiate of, a secretion of 

 insects, 70. 



Anemometer, Whewell's, 39. 



Aneurism, popliteal, 123. 



Animal substances, means of pre- 

 serving, 99. 



Apjohn (Dr.) on the specific heats of 

 gases, 33. 



Architecture, naval, 129. 



Arsenic, its effects on vegetation, 76. 



Arsenical poisons, 67. 

 Artificial crystals, 47. 

 Atmospheric air, means of detecting 

 gases present in, 77. 



electricity, on, 48. 



Aurora borealis, on the, 32. 



je (C.) on a thermometer re- 

 cently discovered in Italy, 77. 



Bath waters, analysis of the, 70. 



Berzelius, chemical nomenclature of, 

 44. 



Black (W.) on ascertaining the 

 strength of spirits, 61. 



Blowpipe, common bellows, 77. 



Botany : — on thelongevity of the yew, 

 and the antiquity of planting it in 

 church-yards, 101 ; observations on 

 the Marsiliaceae, 102; Alcyonella 

 Stagnoi-um, 104; on the manage- 

 ment of the pine, 1 04 ; new and scan- 

 dent species of the Norantia, 104; 

 efiects of arsenic on vegetation, 1 04 ; 

 on caoutchouc, 105; on the accele- 

 ration of the growth of wheat, 106 ; 

 crystals of sugar foimd in Rhodo- 



