Anbury ; and the Analysis of Diseased Turnips. 105 
The more uniform portion, or the body of the second root, 
gave : — 
In natural Calculated dry, 
state. (dried at 212" F.) 
Water 89-50 
•Protein compounds (flesh-forming matters) 2-34 22'37 
Non-nitrogenized substances (heat prodiic-) r-.^^ 67*77 
ing principles) / 
Mineral matters (ash) 1'03 9"86 
100-00 100-00 
* Containing nitrogen . . -37 3-58 
The finger-and-toe like excrescences of the same root gave : — 
In natural Calculated dry, 
state. (dried at 212° F.) 
Water 8G-70 
*Protein compounds (flesli-forming matters) S'OG 29-81 
Non-nitrogenized substances (heat-formingl q.qq 60-56 
principles ) 
Mineral matters (ash) 1-28 9-63 
100-00 100-00 
* Containing nitrogen .. -63 4-77 
Compared with sound turnips, the diseased roots are much 
richer in nitrogen and in mineral matters. It will be noticed 
that the root which was most affected by Anbury contained nearly 
the same proportion of nitrogen wliich was found in the finger- 
and-toe like excrescences of the second root. This is more than 
double the quantity of nitrogen which is contained in sound roots. 
I may observe, in passing, that I have been occupied for some 
years past with the examination of roots, and invariably find that 
roots which practical men pronounce to be worthless, or very poor, 
contain much more nitrogen than roots which are highly esteemed 
for their nutritious and fattening properties. But; I must not 
enlarge on this matter at present. As I shall probably be occu- 
pied for several years with researches into the composition of 
turnips, before they are in a sufficiently advanced state for publi- 
cation, I thought it desirable to mention in the mean time that no 
greater error can be made in practice than to estimate the feeding 
value of turnips by the amount of nitrogen which different sorts 
contain. 
Royal Agricultural College, Cirencester, 
June, 1859. 
