246 
INDEX. 
Bees, young princess, 212. 
Beetles, timber-boring, 152. 
Biot, Professor, on sound in tubes, 
137- 
Bird's-foot trefoil, structure of, 
235- 
Birds, trill of, 153. 
Bischoff, on lime in River Rhine, 
112. 
Blackgang Chine, 116. 
Bones of the ear, 142. 
Bonn, solid matter carried past, 
112. 
Breathing and burning, 57. 
Brood-comb of bees, 211. 
Brook, song of the, 148. 
Burning and breathing, 57. 
Buttercup, honey-glands in, 222. 
Buxton, Poole's Cavern, near, 120. 
CALAMITES OF THE COAL, 184. 
Calyx, use of, 166. 
Canons of Colorado, 116. 
Carbon in plants, 162. 
in sugar, 163. 
Carbonate of lime crystals, 120. 
Carbonic acid in air, 58. 
Cardboard of colours, revolving, 
41. 
Carruthers, Mr., cited, 181, 184. 
Caverns, stalactitic, 121. 
Caves on sea-shore, 122. 
Cells of a plant, 158. 
of bees, 207. 
Chalk-builders, 4, loo. 
Chemical action, 12, 16, 56. 
rays, 48. 
Chlorophyll in leaves, 161. 
Cissy and the drops, 14. 
City of the bees, 200. 
Clerk-Maxwell on ether, 35. 
Clouds, how formed, 78, 81. 
Club-moss and coal-plants, 182. 
Coal, a piece of, 175. 
essences from, 195. 
imprisoned fairies in, u. 
its growth and purity, 186, 
1 88. 
oils, tar, and gas of, 191. 
ball, contents of a, 181. 
forest, picture of a, 183. 
gas, making of, 191. 
: -mine, section of a, 177. 
Coal-plants, what they have done 
for us, 195. 
Cobwebs and dewdrops, 87. 
Cochlea of ear, 144. 
Cocoon of bees, 210-211. 
Cohesion and its work, 8, 12, 
83- 
Coke, 191. 
Colorado canons, 116. 
Colour, bees distinguish, 223. 
Colours, cause of, 44. 
revolving disk of, 41. 
Coral, Huxley on, 21. 
picture of, 20. 
island, 23. 
Corolla, use of, 170. 
Corti's organ, 144. 
Country, sounds of the, 131. 
Crevasses, 126. 
Crystallization, 90, 92. 
a. fairy force, 10. 
Crystals in sugar-candy, 89. 
how they form, 92. 
in many substances, 90. 
of sea-salts, 100. 
