a twelve-rowed ear of corn

The VV. RR. Of this section are too numerous to be inserted. (comment in text)

Plant the tubers roundside down; the buds on the concave side should be & inch below the soil surface.

These two principles are to some extent in conflict in every animal group and at all times; sometimes the one preponderates so that for millions of years the species remains the same, again the other preponderates so that perhaps even in a few decimillennia new subspecies arise.