488 Philippine Journal of Science 1920 
20 been repeated, they also would have shown discrepancies 
similar to the ones shown for series 15 and 16 and for series 
17 to 19. It is obvious that better control of non-solution con- 
ditions must be employed before such comparisons as the ones 
TABE 5.—Relative dry yields of tops (six plants), from series with 4-salt 
solution type A. 
[The value for culture T1R1S1 is always taken as unity and the others are expressed 
in terms of this. The actual value (grams) for this culture is given in parentheses below the 
assumed value of unity, in each case.] 
| 
contra Total concentratio centration 
: a ie Total concentration 0.0038 gram- 
ate perth eeamm molecule | molecule periiter, of 0.2atmos- | gram- 
Solution No. rs ee tad Shere, : : liter, or 0.4 
Firstar nat ; of atmosphere. 
Series 14, | Series 15, | Series 16, | Series 17, | Series 18, | Series 19, | Series 20, 
June 19, May 24. June 19. May 1. May 24. June 19. June 19. 
TIRISI. 1.00 H1.00 H1.00 H 1.00 H 1.00 1.00 1.00 
(0. 198) (0. 416) (0. 239) (0, 354) (0. 420) (0. 243) (0. 226) 
OF crs. 0.98 H 0.98 H 0.98 H1.02 H0.97 0.86 0.73 
Stu. 0.99 H0.96 H 0.96 0.85 HO. 94 0.84 0.73 
S45: 0.74L 0.90 0.95 H0.89 HO0.91 0.79 0.69 
She 0.83L 0.81L 0.85 0.74 0.380 0. 68L 0. 64 
R2S1.-.-. 1.04 H0.98 H 1.02 H0.96 H0.96 H0,91 0.82 
Sa ck H1.16 HO0.94 0.94 0.87 H1.00 0,84 H0.88 
3 pee H1.09 H0.92 0.87 HO. 98 0.77 0, 82 0.71 
Sic H1.08 0.88 0.80L | H0.92 0.79 0,88 0. 65 
R881. _-.- H1.08 H0.93 H1.00 0. 82 0. 82 0.89 Hi1. 04 
A 1.08 H0.93 H0.99 0.80 H0.95 H 0.95 HO. 91 
S32: 0.94 0.80L 0.87 0.74 0.88 H0,95 0.71 
R4S1____- 1.00 0.88 0.92 H0.95 0.90 H1,04 0.93 
Sto: H1.14 0.801L 0.87 HO. 92 H0.94 HO, 92 0.74 
Rest 0.94 0.79L 0.98 0. 80 0.81 0.76 0. 68 
T2R1S1_.._- 1.01 H0.97 0.92 0.81 H0.96 HO0,97 H 0.85 
Oe ee a? 0.91 0.85 0.69 H0.95 0, 82 0.73 
Show 0.86L 0.86 0.83L 0.77 0.74L 0. 86 0. 65 
S44 0.78L 0.85 0.80L 0.62 L 0.67L 0,51L 0.58L 
esi... 0.93 0.89 H0.96 0.84 0.79 0.87 0.63 
$2__._. HL 0. 88 Hii 0.65L 0.77 H0.99 0.78 
een 0.92L 0.84L 0,68 L 0.68 0.73L 0.72 L 0.61L 
ot ae H116 0.92 0.89 0.69 0.89 0.72 L 0.77 
2 Hie 0.87 0.91 0.66L 0, 87 0.75 0.72 
R4S1.._.. 1.08 0.87 0.92 0.72 HO. 92 0.86 0.56L 
TMS ie 0.90 0.90 0.75 0.79 0,47L 0.70 
as 1.04 0.75 L 0. 85 0.621 0.67L 0.71L 0. 69 
rape 0.86L| 0.80L 0.74L 0.541 O.67L| 0.58L| 0.85% 
R2S1___. H1i4 0.82L| H1.20 0.71 0.86 0. 73L 0.7% 
G2: 1.08 0.87 0.72L 0.62L 0.88 0.71L 0.53L 
RsSi__._. H121 | HO0.96 0.92 0.66L 0.71L 0.73 L 0.58L - 
TARIS1.-__. 0.94 0.87 0.72L 0.61L 0.70L 0.79 0.60L 
.... 0.88 L 0.831L 0.691L 0.45L 0.64L 0.51L 0.58L 
BiS1.....| Hie 0.87 0.81L 0.56L 0.76L 0.75 0.58L 
TSR1S1.....| H1.09 0.88 0.80L 0.54L 0.74L 0 58L 0.57L 
Senn 
