English: Plate VI., p. 35, fig. A. — A sprouting hempseed, part of the radicle of which has been gnawed by the ants, of the natural size ; A 1, the same, magnified, rad. radicle ; A 2, an entire srouting seed of the same, magnified ; B, a sprouting pea, part of the radicle of which has been gnawed off; B 1, the same, magnified; B 2, the same stripped of its coat, and showing the two seed leaves; C, a sprouting "canary-seed" (the grain of Phalaris canarioisis) , part of the fibril of which has been gnawed off; CI, the same, magnified, rad. the radicle which remains undeveloped, and fib. the fibril or first rootlet; C 2, an unmutilated sprouting "canary seed ;" D, a mass of earth taken out of the heart of a nest of Atta barbara, in which a spherical cell, made of hardened earth, was buried. It contained grass seeds, among which I found ants at work, and seeds of the same grass still in their husks lay in the gallery leading up to the entrance of this cell ; D 1, the same, further freed from the earth, and having part of one side removed, so as to show the interior and the small lower opening leading out from the bottom of the cell.