The Production of Successive Green Crops. 375 
It appears from the preceding analyses that all the beet-roots 
produced a juice of comparatively low specific gravity, which 
may always be taken as a good general indication of poor 
sugar-yielding quality. Notwithstanding the small size of the 
roots the greater number contained a high j)ercentage of water 
and a correspondingly low percentage of sugar. 
The heavily manured beets, as might have been anticipated, 
Avere very much poorer in sugar, and contained a larger propor- 
tion of nitrogenous and saline matters, than the roots grown 
without manure. 
Thus, one of the heavily manured beets yielded 4^ per cent, 
and the other 3 per cent, of sugar, in round numbers ; whilst 
the two unmanured beets produced 7^^ and 6j per cent, of sugar 
respectively. 
The beets grown in rich garden mould were also poor in sugar, 
especially the white Silesian beet, and both contained an abnor- 
mally high percentage of nitrogenous compounds as well as 
much saline matter, which alv/ays distinguishes beets of low 
sugar-yielding quality. 
I may further mention that I found in the heavily manured 
roots, as well as in those grown in garden mould, apparently con- 
siderable quantities of nitrates. The white Silesinn beet grown 
in vegetable mould was so rich in nitrates that the dried root 
burned with scintillations like touch- or match-paper. 
Laboralory, 11, Salishurij Square, Fleet Street, E.C., 
July, 1869. 
XIV. — On the Production of Successive Green Crops. By 
John Chambers, Farm-BailifF to the Strines Calico-Printin"- 
Company. 
The Strines Calico Printworks are in Derbyshire, distant from 
Manchester 14 miles, Stockport 7, and Buxton 12. They employ 
from five to six hundred work-people, and in connection with 
them is a farm of about 105 acres. Part of the land is in Derby- 
shire, and the remainder in Cheshire, the river Goit passing 
through the midst. About 50 acres are level and low-lying, the 
remainder being elevated. The climate is late, especially if east 
or north-east winds prevail in the spring, and there is not much 
growth before the month of May, 
The stock at present on the farm consists of 14 horses, 1 mule, 
1 ass, 21 cows, 13 young cattle, 26 sheep, and 3 pigs. 
The horses are heavy draught horses, and are mostly used for 
VOL. v.— S. S. 2 C 
