The larva lives chiefly in water; it may be driven away by smoke; gnats; libelulla; æstros bovis; bolts: musca chamæleon; vomitoria.
NOTE V. AMPHIBIOUS ANIMALS.
Diodon has both lungs and gills; some amphibious quadrupeds have the foramen ovale open; perhaps it may be kept open in dogs by frequent immersion so as to render them amphibious; pearl divers; distinctions of amphibious animals; lamprey, leech; remora; whale.
NOTE VI. HIEROGLYPHIC CHARACTERS.
Used by the magi of Egypt to record discoveries in science, and historical events; astrology an early superstition; universal characters desirable; Grey's Memoria Technica; Bergeret's Botanical Nomenclature; Bishop Wilkins's Real Character and Philosophical Language.
NOTE VII. OLD AGE AND DEATH.
I. Immediate cause of the infirmities of age not yet well ascertained; must be sought in the laws of animal excitability; debility induced by inactivity of many parts of the system; organs of sense become less excitable; this ascribed to habit; may arise from deficient secretion of sensorial power; all parts of the system not changed as we advance in life. II. Means of preventing old age; warm bath; fishes; cold-blooded amphibious animals; fermented liquors injurious; also want of heat, food, and fresh air; variation of stimuli; volition; activity. III. Theory of the approach of age; surprise: novelty; why contagious diseases affect a person but once; debility; death.
NOTE VIII. REPRODUCTION.
I. Distinguishes animation from mechanism; solitary and sexual; buds and bulbs; aphises; tenia; volvox; polypus; oyster; eel; hermaphrodites. II. Sexual. III. Inferior vegetables and animals propagate by solitary generation only; next order by both; superior by sexual generation alone. IV. Animals are improved by reproduction; contagious diseases; reproduction a mystery.