BLAZE-CURRENTS OF VEGETABLE TISSUES. 49 
The compensation-values are :— 
Changes 
Before. After. Difference. in the Pea. 
Between A and B...... —0:0090 +0:0030 4-0:0060 — 0:0060 
" B and C...... — 0:0240 — 0:0450 — 00210 +0:0210 
» A and C...... +0:0140 +0:0490 +0°0850 — 0:0350 
Exc? 
z210 B A 350 
140 
The events in the pea itself have been as follows :— 
Excitation from A (anode) to B (kathode). 
Partial blaze at A ..... MEME =  —('0350 
Partial blaze at B ..................... =  -FU0210 
Their algebraic sum  ......... ees =  —0'0140 
Total observed | .................. e. =  —(0:0120 
i. e., both partial blazes have been ingoing ; the total blaze has 
been homodrome with the exciting current; the post-anodic 
homodrome blaze has been greater than the post-kathodie 
antidrome blaze. 
Excitation B < C A 
Total blaze  « 0:0120 
Post-kathodie partial blaze —20210_,, 
„2:0350 
Post-anodic partial blaze 
§36. Experiment to determine the alterations of resistance 
separately at the two poles of an exciting current.—Excitation by 
a single break induction-shock, 10000 — , from A to B. 
Deflection observed by jl;th volt between A and B, B and C, 
and A and C, before and after excitation. The conductivities 
are as follows :— 
Before. After. ^ Oonductivity. 
Between A and B ......... 2 20 x10 
» B and € ......... ll 13 x 12 
» A and C ......... 15 10 x 67 
Between À and B ......... 9 38 x 42 
» B and C ......... 8 9 x l'l 
» A and C ......... 5 10 x 20 
LINN. JOURN.— BOTANY, VOL. XXXVII. E 
Mo. i ot. arac ia 
1908 
