WILLIAM SMELLIE. 
31 
ties of the air — Itn motions — Uses in the animal 
and vegetable kingdoms — Of rain, snow, hail, 
dew, water-spouts, lightning and thunder, aurora 
borealis, and other meteors — Examination of Dr 
Hutton’s theory of rain, &c. 
4. Of the interior parts of the earth — Its strata 
— Their general positions — Their different sub- 
stances — Their regularities and irregularities — 
Their fissures, &c. — Of mines and minerals — 
View of British strata — Natural His tor}' of all the 
metals — Of extraneous bodies found in the strata ; 
as shells, wood, bones, &c Of the causes of 
partial derangement in strata ; as earthquakes, 
volcanoes, the operations of water below the 
surface, &c. — Of precious and other figured 
stones Several plates are to illustrate these 
subjects. 
5. Of the different theories which have been 
formed upon the preceding and other historical 
facts — Theory of Woodward, of Burnet, of 
Whiston, of Scheutzer, of Buffon, of Hutton, &e. 
— A new theory of the earth — General remarks 
by way of conclusion. 
II. OF ANIMALS IN GENERAL. 
1. Of the structure and organs of animals and 
vegetables — Their discriminations — Their analo- 
gies in structure and organs, in growth and 
nourishment, in dissemination and decay. 
2. Of the gradual progress of animals from 
birth to puberty, and thence to decay. 
