the markets for California products in the
Eastern cities not yet tried. The varieties most suitable and
profitable for drying, and especially for consumption in the Eastern
markets, are the Malvoisie, Rose of Peru, Black Hamburg, Mission,
Zinfandel, Charbono, Grenache, and in some localities the Carignan, of
the dark varieties, and the Feher Zagos and Golden Chasselas of the
white grapes; there are many other white grapes that are excellent
when dried, but are too valuable for wine-making purposes, or are too
small or deficient in sugar for use as dried grapes.

The same is true of the dark grapes, some of which ripen so late that
it would be impossible to dry them in the sun, and the use of
artificial heat is, at present prices, too expensive. Therefore, the
varieties mentioned, which generally mature early, are found to be the
most suitable for this purpose. This product is sold by dealers in the
Eastern cities for cooking purposes, and as a substitute for dried
fruits, such as peaches, apples, apricots, etc., in comparison with
which it is usually much cheaper; while for stewing and for puddings
and pies it answers the same purpose. The demand for this product will
probably be gauged by the Eastern fruit crop; that is, the quantity
that can be disposed of will depend upon the quantity of Eastern fruit
in the market, and the prices will be largely dependent upon that of
dried fruit.

* * * * *

WALNUT OIL.

By THOMAS T. P. BRUCE WARREN.

This oil, which I obtained from the fully ripened nut of the _Jugluns
regia_, has so many excellent properties, especially for mixing with
artists' colors for fine art work, that I am surprised at the small
amount of information available on this interesting oil.

Walnut oil is largely used for adulterating olive oil, and to
compensate for its high iodine absorption it is mixed with pure lard
oil olein, which also retards the thickening effect due to oxidation.
The marc left on expression of the oil is said to be largely used in
the manufacture of chocolate. Many people, I am told, prefer walnut
oil to olive oil for cooking purposes.

The value of this oil for out-door work has been given me by a friend
who used it for painting the verandas and jalousies of his house (near
Como, Italy) some twenty years ago, and which have not required
painting since. In this country, at least, walnut oil is beyond the
reach of the general painter, and