(8.) Radicle 12 mm. long, card affixed almost laterally: after 9 h. deflected laterally in a plane at right angles to that of the bean between 40° and 50° from the vertical and from the card. In the plane of the bean itself the deflection amounted to 8° or 9° from the vertical and from the card, in opposition to Sachs’ curvature. After 22 h. 30 m. the extreme tip had become slightly curved towards the card. (9.) Card fixed laterally: after 11 h. 30 m. no effect, the radicle being still almost vertical. (10.) Card fixed almost laterally: after 11 h. 30 m. deflected 90° from the vertical and from the card, in a plane intermediate between that of the bean itself and one at right angles to it. Radicle consequently partially deflected from Sachs’ curvature. (11.) Tip of radicle protected with goldbeaters’ skin, with a square of card of the usual dimensions affixed with shellac: after 11 h. greatly deflected in the plane of the bean, in the direction of Sachs’ curvature, but to a much greater degree and in less time than ever occurs spontaneously. (12.) Tip of radicle protected as in last case: after 11 h. no effect, but after 24 h. 40 m. radicle clearly deflected from the card. This slow action was probably due to a portion of the goldbeaters’ skin having curled round and lightly touched the opposite side of the tip and thus irritated it. (13.) A radicle of considerable length had a small square of card fixed with shellac to its apex laterally: after only 7 h. 15 m. a length of .4 of an inch from the apex, measured along the middle, was considerably curved from the side bearing the card. (14.) Case like the last in all respects, except that a length of only .25 of an inch of the radicle was thus deflected. (15.) A small square of card fixed with shellac to the apex of a young radicle; after 9 h. 15 m. deflected through 90° from the perpendicular and from the card. After 24 h. deflection much decreased, and after an additional day, reduced to 23° from the perpendicular. (16.) Square of card fixed with shellac behind the apex of a radicle, which from its position having been changed during growth had become very crooked; but the terminal portion was straight, and this became deflected to about 45° from the perpendicular and from the card, in opposition to Sachs’ curvature. (17.) Square of card affixed with shellac: after 8 h. radicle curved at right angles from the perpendicular and from the card. After 15 additional hours curvature much decreased. (18.) Square of card affixed with shellac: after 8 h. no effect; after 23 h. 3 m. from time of affixing, radicle much curved from the square. (19.) Square of card affixed with shellac: after 24 h. no effect, but the radicle had not grown well and seemed sickly. (20.) Square of card affixed with shellac: after 24 h. no effect. (21, 22.) Squares of card affixed with shellac: after 24 h. radicles of both curved at about 45° from the perpendicular and from the cards.