DATES AND THE DATE PALM.

Even those whose knowledge of the customs of the Orient extends no

further than a recollection of the contents of that time-honored story

book, the "Arabian Nights," are doubtless aware that, since time

immemorial, the date has been the chief food staple of the

desert-dwellers of the East. The "handful of dates and gourd of water"

form the typical meal and daily sustenance of millions of human beings

both in Arabia and in North Africa, and to this meager diet

ethnologists have ascribed many of the peculiar characteristics of the

people who live upon it. Buckle, who finds in the constant consumption

of rice among the Hindoos a reason for the inclination to the

prodigious and grotesque, the depression of spirits, and the weariness

of life manifest in that nation, likewise considers that the morbid

temperament of the Arab is a sequence of vegetarianism. He points out

that rice contains an unusual amount of starch, namely, between 83 and

85 per cent; and that dates possess precisely the same nutritious

substances as rice does, with the single difference that the starch is

already converted into sugar. To live, therefore, on such food is not

to satisfy hunger; and hunger, like all other cravings, even if

partially satisfied, exercises control over the imagination. "This

biological fact," says Peschel, "was and still is the origin of the

rigid fastings prescribed by religions so widely different, which are

made use of by Shamans in every quarter of the world when they wish to

enter into communication with invisible powers." Peschel and Buckle,

however, are at variance as to the influence of the date diet as

affecting a race; and the former remarks that, "while no one will deny

that the nature of the food reacts upon the mental powers of man, the

temperament evoked by different sorts is different;" yet "we are still

far from having ascertained anything in regard to the permanent

effects of daily food, especially as the human stomach has, to a great

degree, the power of accommodating itself to various food substances,

so that with use even narcotics lose much of their effect." The same

author also adds that the date "trains up independent and warlike

desert tribes, which have not the most remote mental relationship to

the rice-eating Hindoos."

It remains for the reader to reconcile this disagreement of learned

doctors according to his own judgment. The evidence of those who

subsist on the date is certainly overwhelming in its favor. The

Assyrians, tradition says, asserted that it was such a great gift to

them that its worth could not be too extravagantly told; for they had

found, for the leaves, the fruit, the juices, and the wood of the

tree, three hundred and sixty different uses. The Mohammedans adopt

the date palm into their religion as an emblem of uprightness, and say

that it miraculously sprang into existence, fully grown, at the

command of the Prophet. Palm branches still enter as symbols of

rejoicing into Christian religious ceremonies; and throughout

Palestine constant reference is found to the date and the palm in the

naming of towns. Bethany means "a house of dates." Ancient Palmyra was

a "city of palms," and the Hebrew female name Tamar is derived from

the word in that language signifying palm. In Africa there is an

immense tract of land between Barbary and the great desert named

Bilidulgerid, "the land of dates," from the profusion of the trees

there growing.

[Illustration: GATHERING DATES IN CEYLON.]

In this country, the date as an article of food is classed with the

prune, the fig, and the tamarind, to be used merely as a luxury. We

find it coming to the markets at just about this time of year in the

greatest quantities, packed in baskets roughly made from dried palm

leaves. The dates, gathered while ripe and soft, are forced into these

receptacles until almost a pasty mass, often not over clean, is

formed. Their natural sugar tends to preserve them; but after long

keeping they become dry and hard. This renders them unfit for use; but

they still find a sale to the itinerant vendors who, after steaming

them to render them soft (of course at the expense of the flavor),

hawk them about the streets. Dates in the pasty condition are not

relished by those who live on them; nor, on the other hand, would we

probably fancy the dried, almost tasteless fruit which, strung on long

straws, is carried in bunches by the Arabs in their pouches.

The date palm (_phoenix dactylifera_) is the most important species

of the dozen which make up its genus. Though slow in growth, it

shoots up a magnificent stem, to the height sometimes of eighty feet,

the summit of which is covered with a graceful crown of pinnated

leaves. The trunk is exceedingly rough and spiny; the flower spathes,

which appear in the axils of the leaves, are woody, and contain

branched spadices with many flowers; more than 11,000 have been

counted on a single male spadix. As the flowers are dioecious, it is

necessary to impregnate the female blossoms artificially in order to

insure a good crop; and to this end the male spadices are cut off when

the pollen is ripe and carefully shaken over the female ones. At from

six to ten years of age, the tree bears, and then remains fruitful for

upward of 200 years. An excellent idea of the palm in full bearing may

be obtained from our illustration, which represents the mode of

gathering the dates, of which a single tree will often yield from one

to four hundredweight in a season. The fruit varies much in size and

quality; and in the oases of the Sahara forty-six varieties have been

named.

The utilizations of the date palm and its products are very numerous.

The stem yields starch, and timber for houses, boats, fences, fuel,

etc., as well as an inferior kind of sago. The leaves serve as

parasols and umbrellas, and for material for roof covering, baskets,

brushes, mats, and innumerable utensils. At their base is a fiber,

which is spun into excellent rope. When the heart of the leaf is cut,

a thick honey-like juice exudes, which, by fermentation, becomes wine

(the "toddy" of India), or vinegar, and is also boiled down into

sugar. The young shoots, when cooked, resemble asparagus; and the

dates themselves are dried and ground into meal, from which bread is

prepared.

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Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 10 / 203 题