nfluence of the sun and water on the
hatching of the eggs and note the change from day to day, as the Frogs
have nothing more to do with their development. Another reason for
separating the eggs or spawn from the breeding ponds is, when the spawn
is hatched into tadpoles, the Frogs will eat the tadpoles as fast as
they wiggle out of the egg. In fact, Frogs are cannibals, and will eat
the young until they get large enough to protect themselves.

This is why ponds should be constructed so that Frogs of different
sizes can be separated, and all of about a size, kept in ponds by
themselves, and raised together. By this arrangement you save many
small Frogs.

Enemies of Spawn, Tadpoles and Small Frogs.

The enemies must be guarded against by proper fencing with wire netting
and boards. A board should be sunken into the ground at least three
inches, and 2 foot 2 inch mesh wire fastened on it. If a 12-inch board
is used, this will make a fence about 34 inches high. It could be built
higher if desired, but this height makes a good appearance. The enemies
are rats, cats, turtles, water centipedes, water beetles, coons,
leeches and snakes. Snakes are one of the worst enemies, as they will
devour the spawn, of which they are very fond, and also the small
Frogs.

Hatching and Progress of the Young Frogs.

Figure 1 represents the embryo as it appears several days after the egg
is deposited. Figure 2 gives an outline of its form; the arrows at the
side of the head shows the currents of water, which are seen to flow to
the branchiae by the breathing of the young animal. A short period
brings it to the form represented in Nos. 3 and 4, the latter
representing the head. Figure 5 shows the form of the tadpole when
first hatched, which usually takes place about four weeks after the
depositing of the egg. Figures 6, 7 and 8 shows various stages of its
development; the latter representing the tadpole, called pollywog
sometimes; this, for some time, now undergoes little change of form,
but increases in size. At length the hinder legs bud, and are gradually
developed, as seen in No. 9; the fore legs are ere long produced in a
similar manner.

HATCHINGS. The tail begins now to diminish, as seen in No. 10, and is
finally absorbed into the body and disappears. The tadpole (which, for
a time, is like a fish and breathing by branchiae, or gills, and feeding
on vegetable food of fishes) is now a frog; breathes the air by true