It riseth of equall heighth with the banks, & they must
outreach the highest full sea mark, by two foot at least: neyther
ought your flood-gates foote to stand euen with the pondes bottome,
lest emptying the water, it wholly abandon the fish, but must leaue
about three foot depth within. In the halfe circle enclosed between
the flood-gate and the compasse frith, there is digged a round pit,
of three foot diameter, and foure foot depth, frithed on the sides,
which is continually fedde with the water soaking from the sayd
flood-gate, and serueth to keepe any fish aliue, that you haue
before taken, and so to saue ouer often drawing. The floodgate will
hold water best, if his sides be walled vp with Cob. The pond may
not carry one continuall depth, but containe some shallow places,
to protect the smaller fish from the greater, and for them all to
play in, when the weather is hote. In the higher banke there is
also a flood-gate, to let in the fresh water, during Summer season,
which the fish then best affecteth; the rest of the yeere it is
carryed away by a trench, for auoyding diuers discommodities.
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