. 822 Prof. Norton on the Analysis of the Oat. 
h in the different samples of each are not so wide as in other parts 
of the plant, but there are no two even of the same variety alike.* 
The following table gives the per-centage of ash in the whole oat. 
TasLe XXVIII. 
Mean 
of eight 
trials, 
Per cent. of ash in whole : : : jy Satan ‘ | 
she cuictadiame ; [3-17 [3:32 |3:37 [3:25 |3-56 [2-58 [2-66 [3.65 | 319 
é : No. 1.| No. 2.) No. 3.| No. 4.| No. 5.|No. 6.\No. 7.|No. 8 
__ If we take the above mean as near the true one, the bushel of 
40 lbs. contains nearly 14 lbs. of ash; a crop of 60 bushels, there- 
fore, carries off about 75 lbs. When the whole oat is burned, 
we find that the grain being in so much larger quantity, brings 
down the united per-centage of ash far below what is yielded by 
the husk alone. 
Having now completed these preliminary inquiries, I turn to 
the consideration of the composition of the ash from the husk and 
the grain. 
I shall now separate the two parts, and give the analysis of 
each in a distinct table. 
1. Composition of the Ash from the Husk.—I have already 
shown that the ash of this part is three times greater in quantity 
than that of the grain, and that it constitutes about the third part 
of that which is taken from the land in the seed. In proceeding 
another step, and ascertaining its composition, I shall first direct 
attention to a table containing extended analyses of the ash from 
our specimens, grown in widely separated parts of the country, 
and of the two most common varieties, the Hopeton and the po- 
tato oats.t 
Taste XXIX. 
Hopeton 
Potato Oats, _ No.4, No, 2. No. 3. 
| Teri | Benno” |_ “ifr” | Ave. 
Sulbhtric.aghl, =i =o 1s 430 |. 961 | 5-01 4-90 
Phosphoric acid, . x ‘ : 0-66 1:04 2.65 1-80 
Chlorid of sodium, (common salt,) . 2°39 0-24 
Chlorid of potassium, . . . : Pt He 2:37 0-40 
Potash, PPR OM ee 3-93 | 5-55 5°30 
Soda, . , ; ‘ ; ‘ 8-97 
ime, ; i. 4-30) 195 | 431 2:03 
Magnesia, . F RATS | 235 0-38 1-01 0-64 
Peroxid of iron, : Ly ed 1-58 1-61 1:30 
roxid of manganese, : - ) 0-92 0:86 0-72 
pelublesilien, 96S. ee 4 46 2-01 1-61 
Insoluble silica, - + | 6839 | 6839 | 71-82 80-11 _. 
99°80 | 9883 | ORIN F.| 99:33 F. 
_ . The grain burns with exceeding difficulty. The abundance of alkaline salts 
Is SO great that it is almost impossible to prevent their melting, and enveloping the 
carbonaceous matter. ave, In some instances, been compelled, after cha 
08 Me to dissolve out these phosphates, by boiling in successive portions of 
led water. The remaining ash then burns white. e alkaline solution is 
in added, and the whole evaporated to dryness. This method, with care, 18 
perfectly accurate. t The analyses marked F, are from Mr. Fromberg. 
