NATURE AND USES.
M. C. COOKE, M.A., LL.D.
The Rev. M. J. BERKELEY,
D. APPLETON AND COMPANY,
549 AND 551 BROADWAY.
casual observer of Nature recognizes in almost every
instance that comes under his notice in every-day life,
without the aid of logical definition, the broad
distinctions between an animal, a plant, and a stone. To
him, the old definition that an animal is possessed of
life and locomotion, a plant of life without locomotion,
and a mineral deficient in both, seems to be sufficient,
until some day he travels beyond the circuit of diurnal
routine, and encounters a sponge or a zoophyte, which
possesses only one of his supposed attributes of animal
life, but which he is assured is nevertheless a member
of the animal kingdom. Such an encounter usually
perplexes the neophyte at first, but rather than confess
his generalizations to have been too gross, he will
tenaciously contend that the sponge must be a plant,
until the evidence produced is so strong that he is
compelled to desert his position, and seek refuge in the
declaration that one kingdom runs into the other so