Tobacco as a Farm Crop for England. 
249 
the same way as in the previous samples, and the following are the 
results : — 
Per Cent. 
Original leaves contained 14 '0 water 
Dried leaves contained 27 • 0 stalks 
The analyses were made upon the remaining 73 per cent, fleshy part of 
the leaves, after breaking down and thoroughly mixing. 
Per Cent. 
Dried sample contained 17 '03 ash 
having the following percentage composition : — 
Per Cent. 
Potash 11-32 
Soda -91 
Lime 35-83 
Magnesia 3-49 
Iron Oxide and Alumina -70 
Chlorine 9-68 
Carbonic acid (by diff.) 22-67 • 
Sulphuric acid 5-82 
Phosphoric acid 5-25 
Silica 6-51 
102-18 
Deduct Oxygen equiv. for Chlorine .. .. 2-18 
100-00 
The amount of soluble extract was then determined. 
1 Hour at 80° 0. in Water. 
Per Cent. 
Soluble extract 49-84 
Residue 50 • 16 
The total nitrogen in the dried leaf was found to be 6 • 54 per cent. 
The amounts of ash and nitrogen were determined in the residue from 
aqueous extract, and the following results were obtained : — 
Ash. 
Nitrogen. 
Extracted by water . . 
Insoluble in water 
Per Cent. 
11-42 
5-61 
Per Cent. 
3-92 
2-62 
Total 
17-03 
6-54 
The leaves seem to be the most mature that have come under my notice, 
although I have not had time to fully confirm this opinion. They 
contain more nitrogen and less ash than the others, and they also contain a 
fair ratio of ash insoluble in water, to the soluble ash, although even in these 
samples the ratio is insufficiently high. The leaves have more body than 
previous samples, better and more uniform colour, and altogether appear to 
be more natural. 
As regards the ash, it will be seen that it has a slightly different com- 
position to the others. The lower percentage of lime, the higher potash, although 
the total alkaline (potash and soda) are less, the higher phosphoric and 
carbonic acids are all favourable items in the present sample. 
The sample consisted of mixed leaves, some being green and others only 
