248 Tobacco as a Farm Crop for England. 
The nitrogen in the residue was also estimated with the following 
results : — 
No. 1. 
No. 2. 
No. 3. 
Nitrogen extracted . . 
„ remaining ) 
in Eesidue J 
2-08 
115 
3-57 
214 
4'22 
1-07 
3-23 
5-71 
5-29 
Further experiments are being carried on to ascertain, if possible, the exact 
forms of combination in which the above nitrogen exists. The nitrogen 
remaining in the residue may be taken to roughly represent that which exists 
in the form of albuminoids, as the following determinations of the albuminoid 
nitrogen prove, except in Ko. 3 : — 
Pkecentage — Albuminoid Nitrogen. 
No. 1. No. 2. No. 3. 
1-28 2-18 1-53 
The figm-es in connection with Ko. 3 are worthy of careful consideration. 
They seem to point out the existence of considerable quantity of albumi- 
noids soluble in hot water. It will also be noticed that the quantity of total 
albuminoid nitrogen is less than in No. 2. 
The amount of nitrogen existing as nitrate was determined, but the results 
obtained require confirmation. 
This is as I'ar as the experiments have been carried, so that it would be 
premature to criticise the leaves too closely at present. The figures are 
complete, however, as far as the mineral constituents are concerned, and this 
really forms a very important item as regards the burning qualities of a 
tobacco, and an opinion may be expressed from them. There is no doubt 
that such a large proportion of hme to potash in the ash shoiUd not exist. 
The chlorine also should be reduced. Comparing the ashes to those of the 
Faversham samples, they are certainly an improvement, both in composition, 
and in the conditions in which they exist in the plant. 
Taking the leaves themselves they arc larger, stronger, of finer structure, 
and with more body than the Faversham leaves ; but they cannot be said 
to be good matured leaves. Xo. 3 probably is the most matured ; but No. 2, 
although very fleshy as far as can be ascertained at present, and also not 
excessive in ash, is nevertheless very artificial. No. 1 are very good leaves, 
but they contain very little "substance" in them. There is a very 
objectionable feature in samples Nos. 2, and 3, viz., the variable shades of 
colour in the same leaf. Probably the causes of this are known. In sample 
No. 3, it seemed as though fermentation had taken place in one part of the 
leaf and not in the other, and in one or two places it appeared as if the 
fermentation had been abused. 
III. ToiiAcc'o Grown at East Malling by Mr. W. L. Wioan. 
Seven sami)les were received. Two leaves of each sam])le Avcre taken and 
mixed, and jiroduced the sample oi)crated upon. The leaves were treated in 
