and Experiments on the Keeping Qualities of Boots. 
177 
The bulb, when removed from the land on the 2nd of 
August, had thus lost 988 grains of organic matter, or, in other 
words, nearly two-thirds of the solid substance of the bulb had 
been transferred to the tops. 
The preceding experiments show clearly that during the 
second stage of development of swedes, the tops are formed 
at the expense of the food accumulated in the bulbs during the 
first stage ; and that, in consequence, swedes lose in substance 
and feeding quality when they are allowed to make a second 
growth of tops after they have arrived at maturity. At the 
same time, it will be noticed that swedes planted for seed 
exhaust the land of much readily available mineral matter, and 
probably also of nitrogen. 
A good many years ago, I endeavoured to find out to what 
extent swedes grown on the same field varied in composition at 
different times of the year after they had reached maturity, and 
to trace, if possible, any changes which such roots may be 
supposed to undergo on keeping. 
I found, however, that individual roots from the same field 
varied so much in composition that no practical deductions 
could be legitimately drawn from the results of the analyses. 
But as we do not possess many recorded analyses of Swedish 
turnips, I have given the analyses in Table III. as illustrations of 
the variable composition of swedes grown on the same field. 
Laboratory, 11, Salisbury Square, 
London, Jan. 1877. 
V. — Hie Advantages offered by Cavendish College, Cambridge, as 
bearing on the Education of Agriculturists. By the Rev. 
Canon BRERETON, M.A., &c 
A NEW Institution is being established in Cambridge, which, 
while very comprehensive in its object, may be specially bene- 
ficial to the agricultural class. The advantages of a University 
education have hitherto been thought unsuitable to, or out of 
the reach of, English farmers. The time and the cost of a three- 
years' residence in College, after the school course is finished, have 
been considered incompatible with the obligations, both of learn- 
ing and earning, in the business of a farm. But the great im- 
provement effected in the last twenty years by the establishment 
of the University Local Examinations, the reform of many of 
the Grammar Schools, and the successful introduction through 
County Associations of economical and effective modern Public 
Schools, has not only made the general school preparation itself 
VOL. XIII.— S. S. N 
