340 
B. E. LIVINGSTON AND W. E. TOTTINGHAM 
amount of water transpired) was determined, as were also the ap- 
proximate average length of main roots, the dry yield of tops and the 
dry yield of roots. The sum of top and root yields is of course the 
total yield. 
These data are presented in table 2, which shows the actual values 
for the three similar Shive solutions, and their average, in each case, 
and also the relative values for each of the twelve new solutions. The 
relative values have been calculated on the basis of the corresponding 
average from the Shive solutions, this average considered as unity. 
Thus, each datum is expressed in terms of the corresponding average 
from the triplicate Shive solution, and the several data from the new 
solutions are directly comparable throughout each separate column of 
the table. The highest value in each column is denoted by bold-face 
type. 
Table 2 
Water absorbed, average root length and dry yields of tops, of roots, and of entire 
plants, for wheat grown 18 days in the solutions characterized in table i, each value 
expressed in terms of the average of the *hree corresponding values obtained from Shive' s 
best solution for wheat {controls 1,2, and j). 
Solution No. 
Water Absorbed 
Mean Root 
Length 
Tops 
Dry Yield 
Roots 
Entire Plants 
Control I 
247 CC. 
24.6 cm. 
•491 g- 
•153 g^ 
.644 g. 
2 
240 CC. 
25.1 cm. 
■M\ g- 
•152 g. 
.626 g. 
3 
253 CC. 
23.5 cm. 
•509 g,* 
•175 g. 
.684 g. 
Control average 
247 CC. 
24.4 cm. 
•491 g- 
.160 g. 
•651 g- 
(i.oo) 
(I.oo) 
(i.oo) 
(i.oo) 
(I.oo) 
RiCi 
.85 
•53 
•79 1 
.92 
.82 
C3 
•83 
•50 
1.05* 
•95 
1.03 
C6 
.57 
.28 
.7o§ 
.66 
.69 
C8 
•35 
.29 
•45§ 
•50 
.46 
R2C4 
.92 
•44 
•971 
■83 
•94 
R3C1 
.92 
.80 
•84t 
•99 
.88 
C6 
•48 
.30 
.58§ 
.61 
•59 
R4C2 
•97 
.66 
•95* 
.94 
•95 
C4 
•85 
.41 
•85§ 
.86 
•85 
R6C1 
1.07 
I.oo 
1.02 1 
1. 14 
1.05 
C3 
1.04 
.60 
.95 1 
.98 
.96 
R8C1 
1. 10 
.94 
1.02 
1. 10 
1.04 
* Slight magnesium injury, 
t Severe magnesium injury. 
X Slight acid injury. 
§ Severe acid injury. 
The data of table 2 lead to the conclusion that solution R6C1 is 
