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, 11º 10' a.m. fixed with little shell-lac on one side— from 4 to 5 mm from apex— Radicles, rather long ones.— Temp 53º. F.

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

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

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

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

((5) no card 13th)

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

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

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

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

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

(10) 10 P.m(?) 13th 8º 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 10º 20' P.m I think a little curved (17th 10º 35' a.m. card— shell-lac. 3 mm from apex.

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

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

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

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

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

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

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

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

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

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

18th 8º 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.