The stag-beetle is captured for the purpose of examination, [73]

Effect produced upon it by the vapour of ether, [74]

Regret expressed at having terminated its existence, [75]

CHAPTER III.—WORLD-BUILDERS.

The world outside the terrestrial world, [79]

The world of the infinitely little; the architects of ocean, [80]

The immense works accomplished by the lower organisms, [81]

They build up reefs, banks, islands, [82]

The manufacture of chalk described, [83]

How a coral-island is gradually developed, [83], [84]