20, 6 Mendiola: Weight and Ash Content of Tobacco 
TABLE 14,—Absolute dry weights of parts of plants. 
649 
Humid. Dry. 
Plant No. 
Roots. | Stems. | Leaves. | Roots. | Stems. | Leaves. 
g. g. g. 9. g. 9. 
Fe eee a 0. 0980 0.0398 0. 264! 0. 097. 0.0428 | 0.3214 
Beka wl atee oo eee eee 0. 0930 0. 0469 0, 2928 0. 0867 0.0360 | 0.2923 
+: Maier ee oS earner ene Bo rE 0.0912 0. 0558 0. 2801 0.0816 0.0393 |» 0.2502 
Me a i ee 0. 0881 0. 0403 0. 2661 0. 0652 0.0859 | 0.1959 
Bison ets cc encccc ouae tee eee 0. 1052 0. 0513 0. 3283 0. 0890 0.0856 | 0, 2590 
Case ae ea 0. 0994 0. 0888 0.2314 0. 0922 0.0366 | 0.2837 
AVOPARC. es See ce ccadacd 0. 0958 0. 0454 0.2772 0. 0853 0.0877 | 0.2671 
TABLE 15.—Percentage of ash in parts of plants. 
; Humid. Dry. 
Plant No. ae 
In roots. |In stems.|In leaves.| In roots. | In stems.|In leaves.’ 
Pret. Pts P. ct. P. ct. P. ct. Pf. 
Dy Se eed eta. 8. 88 8. 54 7.98 8.22 7.01 5.97 
Bo cicacssSeteeucwrsutesyecswnuuees 10,32 7.25 6.80 10.61 6.53 7.59 
Bee See ee ae os 9.54 7.78 6.57 9.68 6.52 8.55 
Bee 2 ok a eee ee ees 8.85 8,18 1.29 9.81 6.92 10. 26 
Bishi ee ee eee 9.41 7ot 7.09 8.43 7.21 8.41 
Qosgeio a ee a ee eee eens 9.25 7.99 6.83 8. 02 6.48 8.74 
Average ase 9.88 7.83 7.09 9.13 6.78 8. 25 
Probable error of average ----------- +0.14| +0.18| +018; +0.26; +0.08| +0.36 
‘TABLE 16.—Water transpired for four weeks, absolute dry weights, and 
the percentage of total ash. 
Humid. te 
ter Water , 
Plant No. Wa = Dey 7 ey oS 
spired in| matter. Ash. spired in| matter. 
4 weeks. 4 weeks. 
g. P. et. g. P. ‘ct. 
p He ren ees Rigen Reece es gO eee 153.6 | 0.4023 8.25 228.0| 0.4615 6.54 
ee a ee 144.0} 0.4827}; 7.61 220.0 | 0.4150 8.13 
See es ca ee ee ae gee 139.0 | 0.4266 7.36 208.0} 0.8711 8.58 
$22 kee aes eae ee 132.4] 0.8945 7.73 | 209.6 | 0.2970 9.76 
Be ke ee es 142.0| 0.4848 7.61| 218.0| 0.3886, 831 
G0 ee eee ee 154.0] 0.3696 7.60 | 268.6/ 0.4125 8.38 
Average.._.....---- ey (144.2 | 0.4184 7.69| 224.5) 0.3901 8.28 
Probable error of mean .* ees J £60100 | (= 0.08 |-..-2--2-- +0.0189 | +0.26 
