326 Prof. Norion on the Analysis of the Oat. 
1. Comparative view of the quantity of Ash yielded by the dif- 
. Serent parts of the Plant. Calculated dry. . 
Taste XXXIV. 
Hopeton, North-| Hopeton, |Potato, North- Jun, Sandy, | Mean of 
| | umberland. Fife umberland. |Edinburgh,| Fife. | each part. 
Grain, ; 2: 181 2-1 67 | 200 
Bwks exis 6:47 6-03 6-99 8:24 | 603 | 675 
Chaff, 16:53 17-23 18:59 19-16 | 18:97 | 16:09 
Leaf, 7) °* 7-19 14:59 10:29 | 15. 10-88 
Top straw, . 4-95 5-44 9-22 825 |) 11-0L | 7-77 
Middle straw, 611 5-23 7-41 653 | 9-01 | 6-66 
Bottom straw, 5-33 5-18 9:76 710, | 730| 693 
2. Comparative view of the Composition of Ash from each of the 
above parts in Hopeton Oats, from Mr. Harbottle, Hexham, 
iN orthumberland. 
Tarte XXXV. 
Grain.|Husk,|Chaff, Leaf. |Top straw [Middle straw, Bottom straw. | 
Sulphuric acid, sic Hak ten | Sk, 30) 16:33 13:45 13:29 
Phosphoric acid, . |49-19} 1-04 
Chlorid of sodium, . | 0-35) 0-24) 5-11, 2-291 3.13 3-03 15°36 
hosphates of lime t 
magnesia, and iron, 7 +] 6) OOH GIS! 2:84 3-03 0-78 
— } 31-56 10:26 7-96 14-89, 19-09 | 21-80 43:17 
Lime, 5-32 1-95, 4-53 6-99] 7.99 7-23 6:06 
Magnesia, . — . | 869) 0-38 1-84 255) 9.94 2-91 207 
Peroxid of iron, : 0-88 1-58 0-24). , 0-30 1:40 O-6L 
Peroxid of manganese,| . . | 0.92 | 
Soluble silica, . | 0:89) 4-4611-99 5-90 5-13 7:34 5:03 
Insoluble silica, ._|_0-9368 3956-0545-75, 4331 | 33-14 12:25 
97°86 98°33 98-90 99-30) 99-99" | ~9e3s | 9835 _| 
Sprengel and Boussingault have published analyses of the grain 
of oats. Those of Sprengel are inserted in Prof, Johnston’s Lec- 
