20, 6 Mendiola: Weight and Ash Content of Tobacco 651 
TABLE 19.—Water transpired from August 25 to September 22, 191 7. 
| _ Plant No. Shaded. | UR- 
i 
g 4 
Nene RES a er Se WE PEL MOLI ite Ete fr RTS Eo PRL SS 161.2} 230.4 | 
9 ee nee voanael a. «een aes 162.8| 251.6 | 
| SE PLO ERE EE IPT DA TEN OMG EE EEA AE ORE TOE BE OTE 172.0! 278.0 | 
ae eg ae 178.0| 259.6 | 
ee a ee ee 180.0 | 270.0 | 
ee eee 176.4| 218.0 | 
fo ee ee ee ei ee 147.6| 222.0 | 
ee ee nd ee ean eueue 189.6} 272.0 | 
$e Se ee ee ea ae 136.0| 276.0 | 
90 gcc Ag aE eg rapes inn come onion 95.2 266.0 | 
ee ek nes csc cceeanens comin 188.4| 240.0 | 
| We pe es a Ss cae ae ese ew ec cr outa pees 112.0| 272.4 | 
re Rivera ie eA een a, ow, wine an pace anaete ep ece nocepeied 164.1 | 254.2 
TABLE 20.—Dry matter. 
Shaded. Unshaded. | 
Plant No. perce 
In roots, | In stems.|In leaves.) In roots. | In stems.\In leaves. 
g. g. g. 9. 9. 0. 
Ve i a ea oe ees 0. 0938 0.0711 0.3381 0. 07 0.085. 0, 4020 
Pos creme ree ieee oes ey eee 0. 0908 0.0719 0. 3064 0. 1473 0.0499 | 0.4468 
Boe oa a a eet eens 0.0827 0. 0738 0.3142 0. 1684 0.0393 | 0.4637 
Bia ee ee cana eee 0.0966 | 0.0646) 0.3442) 0.1637) 0.0419 0.4587 
Gigs cached ese gecas eden 0. 1090 0. 0813 0.3504 0. 1934 0.0445 | 0.4621 
Ca i ake bacnt cos cueoweenane 0.0850 0. 0550 0.2964 | 0.0845 0.0283 | 0.3580 
yf Pee ere Ss 0. 0643 0. 0546 0. 2573 0.0994 0.0557 | 0.3763 
pewter piereparvcr irae ater Poy ay Ge pects nee 0. 0992 0. 0590 0. 8589 0. 1579 0.0814 | 0.4316 
Oooo eeadees = cdgeeewedeueeveebeeee 0.0595 0.0474 0, 2675 0. 1862 0,0413 | 0.3940 
p11 Papel ipa tercrer cpa ei 0. 0300 0.0319 0. 1706 0. 1488 0.0455 | 0.4636 
p Berio mere: ie elec nee ee ie pmo er 0. 0620 0.0527 0. 2297 0. 1324 0.0871 | 0.3962 
Beeb eee ee oe cd PIE orc apt OO AS risers 0. 0534 0. 0455 0, 1896 0. 1580 0.0460 | 0.4190 
| SeetihG a a 0.0772 | 0.0591 | 0.2863} 0.1379/ 0.0413 oxealls 
Physical characters of plants——Considering first the crop 
grown in humid and dry chambers, there is found a general ten- 
dency for the roots of the “dry” plants to become longer. In 
Table 5 there is a difference of 11.9 centimeters and in Table 
12, one of 4 centimeters in favor of the “dry” roots. In a third 
series this difference was insignificant, amounting to only 0.1 
centimeter. There was no Significant difference in the length of 
‘top and the number of leaves. 
When the crop grown in shaded and unshaded chambers is 
considered it is seen (Table 18) that here also the roots of the 
unshaded plants were longer, the difference being 2.9 centi- 
