330 Index. 



CARBON, its source, 318 



Cell differentiation changes with kinds of nutriment, 78 



comparison between Animals and Vegetables, 79 



Cerebellum, supposed compound function, 122 



Cervical region withdrawn in fish, and with them no plurality of 



limbs, 134 



Chemical affinity, opposed to equal attraction, 4, 40 

 Cholera and fungiferous poison, 253 

 Chronology, Usher's adopted, 204 



, Remarks upon St. Matthew, 205 



Circulation, its relation to the state of the heart, 238 

 Colour, determined by molecular arrangement, 5, 78 



, known as reflected light in organic bodies, 5, 75 



, uniform in the wild condition, but variable under cultivation, 77 



Compass, secular variations of, 29, 293 

 Connective tissue not membrane, 82 

 Contractile tissue, none in Vegetables, 140 

 Cross breeds in Cattle and Horses, 258 



DIFFERENTIATION and Metamorphosis, 5, 78 

 Diocletian, Emperor, remarks upon, 164 

 Disease, change of type, 176 

 , its induction and planting, 229 



EARTH, the, being once a molten mass, rejected, 310 

 Earth's internal magnetic mass, 292 



Stratification, its origin, 297 



sudden thermal changes, 291 



surface and interior, suffered at some time a great physical^ 



change, 294-297 



Earthquakes and Volcanoes not causes of Epidemics, 287 

 Electricity, its distribution to the heart, and the muscles terminating 



arteries, 92-98 

 Endemic conditions the result of civilisation, 10, 143 



conditions of a hereditary origin, 145 



and Epidemic diseases in relation to Vital Force, 146 

 Epidemic Eras, their duration, 16 



Eras, an outline of their course, 18 



, present Era, 23, 299 



in present Era, Heart most affected, 23, 235 



Eras last about six hundred and forty years, 161, 177 



Eras in relation to the Rise and Fall of Empires, 25, 260 

 , the Chronographic, 217 



