538 



Analysis of the cotton plant {wliole plant). 



Moisture at 100° C 



Cmde ash 



Nitrogen 



Phosphoric acid. . . 

 Potassium oxide . . 



Sodium oxide 



Calcium oxide 



Magnesium oxide . 



Sulphuric acid 



Insoluble matter.. 



7.360 

 5.810 

 1.460 

 0. 4:s9 

 1.334 

 106 

 1.416 

 0.517 

 0.199 

 0.433 



7.55 

 22.79 

 1.82 

 24.38 

 8.90 

 3.43 

 7.40 



Analysis of parts of the cottvn plant. 



Lint. 



Crop of 1889. 



Crop of 1890. 



Air- 

 dry. 



Ash. 



Air- 

 dry. 



Ash. 



Seed. 



Bolls. 



Whole seed. 



Air- 

 dry. 



Ash. 



Crop of 1889. Crop of 1890. 





Air- 

 dry. 



Ash. 



Air- 

 dry. 



Ash. 



Pr.et. 



Moisture at 100° C 



Crud.-ii.sli 



>«'ilr«;;fu 



I'liosplioiicacid... 

 Potas.siiiiii oxide . . 



Sodium oxirle 



Calcium oxide 



Magiifeiium oxide. 



Suljihuric acid 



Insoluble matter.. 



Pr.et. 

 6.72 

 1.50 

 0.28 

 0.066 4.41 

 0. 037 42. 47 

 0.026 1.76 

 0.15510.30 

 0. ml 7.41 

 0.086 5.71 

 0.023 1.56 



Pr.et. Pr.et 



6.77 



1.80 



0. 200 



0.053 2.94 

 0. 848 47. 10 

 0.027 1.51 

 0.149 8.30 

 0.161 8.96 

 0.090 5.01 

 0.028 1.555 

 I 



Pr.et. Pr.et. 



7.04 



3.285 



3.07 I 



1.019 31.01 

 1.166 35.50 

 0.019 0.57 

 0,187| 5.68 

 0.499115.19 

 0. 128| 3.90 

 0.023 0.69 



Pr.et. 



Pr.et 



Pr.et.' Pr.et. 



114.36 



7.03 



I 0.865 



Pr. et. 



1. 840 0. 102 

 1.216 1.454 



Pr.et 

 9.47 

 7.05 

 1.36 

 0.401 5.245 0. 170; 2.425 



0.175 0.182 

 0.883 0.390 



2. 905 37. 93 

 0.045 0.59 

 1. 092 14. 28 

 0.291 3.81 



0.1 2G 0. 105I 0.558 7.30 

 0.580; 0.042! 0.269 3.52 



3. 226 45. 895 

 0.045 0.04 

 0.775 11.03 

 0.2(»9; 2.97 

 0.315] 4.48 

 0.3051 4.34 



Leaves. 



Crop of 1889. Crop of 1890 



Air- 

 dry. 



Ash. 



Crop of 1889.'Crop of 1890. 



Air- 

 dry. 



Ash. 



Stem. 



Air- 

 drv. 



Ash. 



Air- 

 dry. 



Ash. 



SooU. 



Crop of 1889. 



Crop of 1890. 



Air- 

 dry. 



Ash. 



Air- 

 dry. 



Ash. 



Pr.et. 



Moisture at 100° C 



Crude a.sh 



Nitrogen 



Phosj)lioric acid . . . 

 Potassium oxide.. 



Smlium oxide 



('alciuni oxide 



Magnofium oxide. 



Sulphuric acid 



Insoluble matter.. 



Pr.et. 

 9.50 



16.42 

 2.367 

 0.456 



2.78 



0. 828, 5. 04 

 0.366| 2.22 

 7. 082 43. 13 

 1.260 7.68 

 0.842 5.13 

 I 0.928: 5.65 



Pr.et.^Pr.et. Pr.et. 



12.14 



12.05 ' 



2.451 



O.422I 3.50 

 1.327 11.01 

 0.206 1.71 

 4. 096 33. 99 

 0.762 6.32 



0. 376| 3.12 



1. 2OO1IO. 04 



Pr.et. 



Pr.et. 

 8.41 

 3.925 

 0.830| 

 0.197 5.01 

 0. 915 23. 32 

 0.106 2.69 

 1.055 26.87 

 0. 431 10. 98 

 0.140 3. .57 

 0.0691 1.76 



Pr.et. 



Pr.et. 



11.71 

 4.23 

 0.739 

 0.173 4.10 

 1.453 34.35 

 0.091 2.14 

 0. 623 14. 72 

 0.300 7.10 

 0.082 1.95 

 0. 174 4. 11 



Pr.et. Pr.et. 

 7.65 

 3.310 



0.707 

 0.169 5.10 

 0. 861 26. 00 

 0.162 4.88 

 0.696 21.04 

 0.336 10.16 

 0.126 3.82 

 0.205 6.19 



Pr.et. 

 6.93 

 3.36 

 0.591 

 0.135 

 1.342 

 0. 133 

 0.386 

 0.301 

 0.100 

 0.233 



4.02 

 39.94 

 3.97 

 11.49 

 8.97 

 2.97 

 G.92 



[The fir.st sample of lint was machine ginned, the .second] was separated from tlio 

 seed by hand in the laboratory. Both were fair samples of ni)land cotton. » » • 



Both the insoluble residue and crude ash in these two samples are ])robably a little 

 higher than the true amount on account of the dust blown into the lint by the wind, 

 which it was almost impossible to remove completely. The ditt'ereuces in the phos- 

 phoric acid and potash are undoubtedly due to variations in the two samples, which 

 were grown in diflferent seasons and on different soils. Duplicate analyses verified 

 these results. 



The seed was carefully selected, being a mixture of several samples of seed from 

 which the lint had been sei)arated by hand. In this manner a sample almost entirely 

 free from dust and sand was obtained. » • • 



