89

June 12th  Radicles of Beans—   Jar wooden top . 1880. 

  Same radicles on which Frank experimented

7 radicles of card — generally rhombs about 1/20th of inch squ on each side, 11° 10' a.m. fixed with little shell-lac on one side— from 4 to 5 mm from apex— Radicles, rather long ones.— Temp 53°. F.

(11 10' P.m card washed off) 4° 30' P.m no effect on any — put jars on chimney piece

(2) 10° P.m distinctly bent to card, & abruptly 13th 8° a.m has become straight ✔ (13' 4° 30' P.m. All same state in both jars.)

(3) ✔ 10°— curved gradually to card 13' 8° a.m. curved slightly with trace of Kink

(4) ✔ 10° slight Kinked to card — 13th 8° a.m slight Kink

((5) no card 13th)

(6) 10° straight, not grown — 13th 8° do. tip brown & dead

(7) 10° straight not grown 13th 8° do.

11° 25' a.m Jar with glass top. (fixed same manner.)  . 

(8) 10° P.m straight not grown 13th 8° do

(9) 10° P.m.(?) 13th 8° a.m (card game) 

(10) 10 P.m(?) 13th 8° a.m no effect

(Cards beneath apex Radicles of Beans)

90

June 16th 1880.    Radicles of Beans. with objects all 4 mm from Apex— suspended over water on Chimney Piece.—

(1) — R.. 2 1/2 m in length Cm. long 10. 30' a.m. card grown 10° 20' P.m I think a little curved (17th 10° 35' a.m. card— shell-lac. 3 mm from apex.

(2) 2. m C.m long : 10° 30' A. m card gum.) (17th 10° 35' card— shell-lac. 3 mm (old cards & glass left on.)

(3) 1.5 C.m. long. 10° 30' a.m Card gum: (17' 10° 35' card shell-lac. 3 mm

(4) 1.5 C.m. 10. 30 long: 10° 30' a.m. card gum. (17th 10° 35' card— shell lac 4 mm.

(5) 1.5 C.m. long : 10° 30' a.m bit of thin glass shell lac.. (17th 10° 35' a.m shell-lac. card 4 mm

(6) 2.0 C.m. long like (5) (17th 10° 35' a.m card— shell-lac 4' mm.

(7) 2.0 C.m long like (5) 10 20' P.m I think curved (17th  8° a.m. quite straight)

(17th— 10° 35' a.m card shell-lac 4 mm.

(8) 2.0 C.m. long. like (5) (17' 10° 35' a.m card shell-lac. 4 mm.

16th  4° 30' P.m. no trace of effect in any of the 7.) (17th. 8° a.m all straight! Yet one has some more tip in contact with head of pin & has bent splendidly over the head.)

(17th 10° 10' P.m. none of the new cards have acted)

18th 8° a.m. none have acted! No 4 has dropped of

(over

90v

Conclusions

8 radicles 8 radicle tried with card or bits of glass & shell-lac, but 4 of them with gum at 3 & 4 mm from apex— 7 of these radicles tried again all at 4 mm from apex & with shell-lac, & of these 15 trials none acted. In other paper June 12th, in which the same radicles which were tried by Frank were afterwards tried by me, 8 were tried, but of these 3 did not grew so that only 5 were fairly tried, 4 were Certainly curved towards bit of card & 1 no effect.. I may say out of 20 trials 4 acted.—

A pin-head acted.

June 20th Another spec. with tubulous petioles only 1.9 inch long.— slightly split at base— enlarged & opened the split (Megarrhiza) & fond plumule perfectly straight & little above 7 mm long (or exactly .3 inch) now this proves that swelling of plumule burst the tube & that its escape is due to bending down of apex by which the convex or bowed part protrudes from the slit & thus escapes. This shows that a subsequent specially acquired movement.