258 BOTANICAL GAZETTE [NOVEMBER 
CATALASE 
SEED SOAKED iM WATER 
. WATER I> 80 
TEST 36 37 38 40 41 42 43 4} 
Fic. 12.—Effect of formaldehyde 1 to 80 upon ability of seed extract to liberate 
compu and constant temperatures and pressures; extract of 
water caker seeds (controls) indicated by ner treatment in 1-80 indicated by 
vertical ruling; hinla ry 
after treatment. 
TABLE IV 
DATA ON CATALASE TESTS AS SHOWN IN FIG. 12 
; Correct 
Test no. a — Oxygen (cc.)| Barometer | Temperature couvea: oe 
1 gm. sample 
Set ae Water control} 1.014 20 743.5 25 17.10 
S62 is Water control I,002 24 743.5 25 20. 
SPATS Water control} 1.005 22.5 743-5 a 19.5 
ahi: Water peontetert 2 21.5 743.5 24 18.6 
Pes 1-80 1.014 1S.7 743.5 24 13-5 
485.003 ' 1.005 18,8 74 23 16.3 
pt pe ee 1-80 1.002 17.5 74 23 15.2 
Pt eae 1-80 1.020 72.5 74 23 13-3 
pov 1-80 Zz; 18.5 rE 23 16.1 
Se Water control I.O11 43.5 74 21.5 20.5 
OT Perera Water control 1,011 24.2 74 20.5 21.2 
PU gah ete Watercontrol| 1.012 26.1 rE 20.5 22.9 
eS Water control} 1.014 25.9 74 21 22.6 
Pe eee Water control 1.014 26.7 rE at.5 23.2 
BOer eas: 1-80 - 20.0 74 21.5 17.6 
ge eee 1-80 1.003 21.3 74 20.5 18.8 
ce Bare 1-80 I.002 23.8 7 21 21.0 
Ras io 1-80 I.OIL 21.8 74 $2.5 19.0 
Lo ae 1-80 1.001 21.7 Ve 21.5 19.1 
