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LIFE, IN ITS HIGHER FORMS. 
little prisoner, as if impatient of confinement, tries to 
straighten itself by spasmodic efforts, and at length suc- 
ceeds in rupturing the skin of the egg and becomes free. 
It is now a Tadpole — a fish-like creature, without 
limbs, with an enormous head, and a body thinned off to 
Transformations of Frog. 
a long tail, which is furnished with a broad finny expan- 
sion above and below. The gills now attain their greatest 
size, and consist on each side of a pair of much-branched 
tufts, which, under the microscope, present a most inter- 
