INDEX II. 
- Rossel’s observations of the variations 
of the magnetic intensity, 3. 
Rudberg’s magnetical observations, 
33. 
Russell’s (J.S.) report on waves, 417. 
Sabine (Major) on the variations of 
the magnetic intensity observed at 
different points of the earth’s sur. 
face, 1,497. 
Secretions, on the composition of, 
139. 
Statistics of Dukhun, 217. 
Sykes (Lt.-Col.) on the statistics of 
Dukhun, 217. 
Taylor (Rev. W.) on thevarious modes 
of printing for the use of the blind, 
87. 
Temperature of mines, 134. 
Thomson (Thos.) on the composition 
of cast iron produced by cold and 
hot blast, 117. 
Axrriat currents of the temperate 
zones, on the probable causes of, 24. 
Alcohol and nitric acid, on the specific 
heats of, 43. 
Allis (T.) on the sclerotic bones of the 
_ eye in birds and reptiles, 98. 
Alum, new variety of, 49. 
Andrews (Dr.) on the action of nitric 
» acid on certain metals, 57. 
Anemometer, Whewell’s principle of, 
32; observations with, 32. 
, hew registering, 33. 
Antimonial compound, applicable as 
a pigment, 58. 
Apjohn (Dr.) on a new chemical com- 
pound, 48. 
153 
Tidal wave, on the, 417. 
Tide observations, results of, 103. 
Todd (Dr.) on the motions and sounds 
of the heart, 155. 
Trap Rocks of Dukhun, structure and 
mineral composition of, 227. 
Trimorphous bodies, 197. 
Veins, metallic, on the electricity of, 
Ward (N. I.) on the growth of plants 
in closed glass vessels, 501. 
Waves, researches on, 417. 
Weights and measures of Dukhun, 
327. 
Williams (Dr.) on the motions and 
sounds of the heart, 155. 
Yates’s (J.) report on the growth of 
plants in closed glass vessels, 501. 
Zoology of Dukhun, 245. 
INDEX II. 
TO 
MISCELLANEOUS COMMUNICATIONS TO THE 
SECTIONS. 
Apjohn, (Dr.) on a new variety of 
alum, 49. 
Arabian leprosy, 128. 
Arnott (Dr.) on safety lights for mines, 
54, 
Ashes of plants, on, 103. 
Ashworth (Mr.) on the state of edu- 
cation in Bolton in 1837, 138. 
on the strike of the cotton spin- 
ners of Preston, 140. 
Atmosphere, on Poisson’s theory of the 
constitution of the, 31. 
Aurora borealis, on its occurrence in 
England during summer, 28. 
Babington (C. C.) notice of a botanical 
