218-219

Jar A

Maize Secondary Roots

July 6th   12°  Kept on sand-Tray Study

  (4° 45' no effect)

Temp. of sand-bath on 6th 76° to 82° what temp of damp air above water not know; jar large, no doubt damp. air much lower than surface of sand.

5 Secondary Roots with sqrs.

[sketch]

(small square of card)

July 7th 8°

1 Secondary root Hooked upward after 20°

2 considerably declined from sq

3 other not affected

[sketch]

(small square of card)

  4°. 45 a second radicle slightly Hooked.    —after 29°.

one primary. root with sq. wd not complete close Helix

6/10

3/5

See to Helices How many turns

 

(see above for temp.)

Jar marked "Second First Jar" 5 secondary roots 12° sqrs affixed

4° 50' one marked by oblique pin apparently curved fr sqr after only 5°

Call it second radicles

N.B The secondary roots do not rise from main root

(1) July 7th 8. 15' am but for its base it forming a loop after 20° →

[sketch]

(small square of card)

Primary root

2 & 3 declined from the perpendicular & from the sqr.

& I suppose affected by the square

4 & 5 not affected

(July 8 The two secondary roots now finely hooked with terminal part turned right up to zenith; a Third radicle now has point bent at right angles from sq.)

[CUL-DAR209.5.219]

(N.B one of first roots now forming helix of 2 complete close turns.)

Some of the old primary roots with sq. knotted

thus [sketch]

(July 8th