ing to M. Decaisne, they are
treated in the following manner:--

The tubers designated "Ysano," at La Paz, require to be prepared before
they are edible. Indeed, when prepared like potatoes, and immediately
after being taken up, their taste is very disagreeable. But a mode of
making them palatable was discovered in Bolivia; and the Ysano has there
become, if not a common vegetable, at least one which is quite edible.
The means of making them so consists in freezing them after they have
been cooked, and they are eaten when frozen. In this state it is said
that they constitute an agreeable dish, and that scarcely a day passes
at La Paz without two lines of dealers being engaged in selling the
Ysano, which they protect from the action of the sun by enveloping it in
a woollen cloth, and straw. Large quantities are eaten sopped in
treacle, and taken as refreshment during the heat of the day.

_Propagation and Culture._--The plant may be propagated by pieces of the
tubers, in the same manner as potatoes; an eye being preserved on each
piece. The sets should be planted in April or May, according to the
season, about four feet apart, in light, rich soil. The stems may be
allowed to trail along the ground, or pea-sticks may be placed for their
support. In dry soils and seasons, the former method should be adopted;
in those which are moist, the latter. The tubers are taken up in
October, when the leaves begin to decay, and stored in sand.

* * * * *

THE TURNIP.

English Turnip. Brassica rapa.

The common Turnip is a hardy, biennial plant, indigenous to Great
Britain, France, and other parts of Europe. The roots of all the
varieties attain their full size during the first year. The radical
leaves are hairy and rough, and are usually lobed, or lyrate; but, in
some of the sorts, nearly spatulate, with the borders almost entire.
The flowers are produced in May and June of the second year, and the
seeds ripen in July; the flower-stalk rises three feet or more in
height, with numerous branches; the leaves are clasping, and much
smoother and more glaucous than the radical leaves of the growth of the
previous year; the flowers are yellow, and are produced in long, loose,
upright, terminal spikes; the seeds are small, round, black, or
reddish-brown, and are very similar, in size, form, and color, in the
different varieties,--ten thousand are contained in an ounce, and they
retain their vitality from