INTKODUCTORY. 
The Book of Nature is the Book of God. It 
translates itself for every man into liis own language, 
so that no error caused by man's defective wisdom 
can creep in. 
The keenest inquirer, the closest investigator, 
can discover no flaw in it. The highest magnifying 
power when applied to the minutest atom in the 
world of Nature only discovers greater degrees of 
perfection — a world of beauty, lying hidden within 
a world of beauty. 
The Book of Nature is written in language that 
adapts itself to every age — the little child can read 
