THE FOOD OF THE SILKWORM.

After leaving Bayou Crocodile, our young hunters travelled due west,

over the prairies of Opelousas. They did not expect to fall in with

buffalo on these great meadows. No. The bison had long since forsaken

the pastures of Opelousas, and gone far westward. In his place

thousands of long horned cattle roamed over these plains; but these,

although wild enough, belonged to owners, and were all marked and tended

by mounted herdsmen. There were white settlements upon the prairies of

Opelousas, but our adventurers did not go out of their way to visit

them. Their purpose was to get far beyond; and they did not wish to

lose time.

They crossed numerous bayous and rivers, generally running southward

into the Mexican Gulf. The shallow ones they forded, while those that

were too deep for fording, they swam over upon their horses. They

thought nothing of that--for their horses, as well as the mule Jeanette

and the dog Marengo, were all trained to swim like fishes.

After many days' travel they reached the banks of the river Sabine,

which divides Louisiana from Texas, then a part of the Mexican

territory. The face of the country was here very different from most of

that they had passed over. It was more hilly and upland; and the

vegetation had altogether changed. The great dark cypress had

disappeared, and pines were more abundant. The forests were lighter and

more open.

There was a freshet in the Sabine; but they swam across it, as they had

done other rivers, and halted to encamp upon its western bank. It was

still only a little after noon, but as they had wet their baggage in

crossing, they resolved to remain by the river for the rest of the day.

They made their camp in an open space in the midst of a grove of low

trees. There were many open spaces, for the trees stood wide apart, and

the grove looked very much like a deserted orchard. Here and there a

tall magnolia raised its cone-shaped summit high above the rest, and a

huge trunk of one of these, without leaves or branches, appeared at some

distance, standing like an old ruined tower.

The ground was covered with flowers of many kinds. There were blue

lupins and golden helianthi. There were malvas and purple monardas, and

flowers of the cotton-rose, five inches in diameter. There were

blossoms of vines, and creeping plants, that twined around the trees, or

stretched in festoons from one to another--the cane-vine with its white

clusters, and the raccoon grape, whose sweet odours perfumed the air;

but by far the most showy were the large blossoms of the bignonia, that

covered the festoons with their trumpet-shaped corollas, exhibiting

broad surfaces of bright scarlet.

In the midst of these flowers our hunters pitched camp, picketing their

animals, and putting up their tent as usual.

The sun was shining brightly, and they proceeded to spread their wet

robes and blankets.

"It strikes me," said Lucien, after they had completed their

arrangements for camping, "that we have halted on the site of an old

Indian town."

"Why do you think so?" asked Basil.

"Why, I notice these heaps of rubbish here that are covered with weeds

and briars. They are Indian graves, or piles of decayed logs where

houses once stood. I can tell from the trees, too. Look around! do you

see anything peculiar in these trees?"

"Nothing," replied Basil and Francois together. "Nothing, except that

they are mostly small and low."

"Do you not observe anything odd in their species?"

"No," said Basil. "I think I have seen them all before. There are

mulberry-trees, and black walnuts, and Chicasaw plums, and pawpaws, and

Osage orange, and shell-bark hickories, and pecans, and honey-locusts.

I see no others except vines, and those great magnolias. I have seen

all these trees before."

"Yes," returned Lucien, "but have you ever observed them all growing

together in this way?"

"Ah! that is a different affair: I believe not."

"Because it is from that fact," continued Lucien, "that I am led to

believe this spot was once the seat of an Indian settlement. These

trees, or others that produced them, have been planted here, and by the

Indians."

"But, brother Luce," interposed Francois, "I never heard that the

Indians of these parts made such settlements as this must have been.

These low woods extend down the river for miles. They must have had a

large tract under cultivation."

"I think," replied Lucien, "the Indians who at present inhabit this

region never planted these trees. It is more likely a settlement of the

ancient nation of the Natchez."

"The Natchez! Why, that is the name of a town on the Mississippi, but I

did not know there were Indians of that name."

"Neither are there now; but there once was a very extensive tribe so

called who occupied the whole territory of Louisiana. It is said that,

like the Mexicans and Peruvians, they had made some progress in

civilisation, and knew how to weave cloth and cultivate the soil. They

are now an extinct race."

"How came that about?"

"No one can tell. Some of the old Spanish authors say that they were

destroyed by Indians from South America. This story, however, is very

absurd--as is, indeed, most of what has been written by these same old

Spanish authors, whose books read more like the productions of children

than of reasoning men. It is far more likely that the Natchez were

conquered by the Creeks and Chicasaws, who came from the south-west of

their country; and that the remnant of their tribe became blended with

and lost among the conquerors. In my opinion, this is how they have

come to be extinct. Why, then, should not this be one of their ancient

settlements, and these trees the remains of their orchards, cultivated

by them for their fruits and other uses?"

"But _we_ make but little use of such trees," remarked Francois.

"What's that you say?" exclaimed Basil. "You, Francois, who every year

eat such quantities of shell-bark nuts, and pecans, and red mulberries,

too!--you who suck persimmons like a 'possum!--no use, eh?"

"Well, that's true enough," rejoined Francois, "but still we do not

cultivate these trees for their fruits--we find them in the woods,

growing naturally."

"Because," interrupted Lucien, "we have the advantage of the Indians.

We understand commerce, and get other and better sorts of fruits from

all parts of the world. We have cereals, too, such as wheat and rice,

and many kinds which they had not; we can therefore do without these

trees. With the Indians it was different. It is true they had the

Indian corn or maize-plant (_Zea maiz_), but, like other people, they

were fond of variety; and these trees afforded them that. The Indian

nations who lived within the tropics had variety enough. In fact, no

people without commerce could have been better off in regard to

fruit-bearing plants and trees than the Aztecs, and other tribes of the

South. The Natchez, however, and those in the temperate zone, had their

trees and plants as well--such as those we see before us--and from these

they drew both necessary food, and luxurious fruits and beverages.

Indeed the early colonists did the same; and many settlers in remote

places make use to this day of these spontaneous productions of Nature."

"Would it not be interesting, Basil," said Francois, appealing to his

elder brother, "if Lucien would give a botanical description of all

these trees, and tell us their uses? He knows all that."

"Yes," replied Basil, "I should like to hear it."

"That I shall do with pleasure," said Lucien. "Not, however, a

_botanical_ description, according to the sense of the Linnean school,

as that would weary you soon enough, without adding much to your stock

of information. I shall only state what I know of their properties and

uses; and I may remark that there is not a tree or plant that is not

intended for some use in the economy of Nature. If botanists had spent

their time in trying to discover these uses, instead of wasting it in

idle classifications, mankind would have been more enriched by their

labours.

"Let us begin, then, with the mulberry-tree, as there are many of them

growing around. Were I to tell you all about this valuable tree, I

should occupy a day or more. I shall only state those facts about it

that are most interesting.

"The mulberry-trees form the genus _morus_--for this was the name by

which they were known to the ancient Greeks. Of this genus there are

several well-known species. No doubt there may be other species growing

in wild countries, and yet unknown or undescribed by botanists; and this

remark applies as well to other trees, for every day we hear of new

varieties being discovered by enterprising explorers.

"First, then, comes the white mulberry (_Morus alia_). It is the most

important species yet known. This you will readily admit when I tell

you that from it comes all our silk--spun out of it by the silkworm

(_Bombyx mori_). It is called white mulberry on account of the colour

of its fruit, which, however, is not always white, but sometimes of a

purple or black colour. Now it would be difficult to give an exact

description of a white mulberry-tree; for, like the apple and pear

trees, there are many varieties of it produced from the same seeds, and

also by difference of soil and climate. It is a small tree, however,

rarely growing over forty feet high, with thick leaves and numerous

branches. The leaves are the most important part of it--for it is upon

these the silkworms feed, spinning their fine threads out of the milky

juice, which in its properties resembles the juice of the caoutchouc

tree. It is true that the silkworm will feed upon the other species of

mulberries, and also upon slippery elms, figs, lettuce, beets, endive,

and many kinds of leaves besides; but the silk made from all these is of

an inferior quality; and even the varieties of the white mulberry itself

produce different qualities of this beautiful material.

"This tree has other uses. Its wood is compact and heavy, weighing

forty-four pounds to the cubic foot. In France it is much used in

turnery; and wine-casks are made from it, as it gives to white wines an

agreeable flavour of violets. Vine-props and fences are made from its

branches; and out of its bark--by a process which I have not time to

describe--a cloth can be manufactured almost as fine as silk itself.

The fruit of the white mulberry--where it grows in warm climates--is

very good to eat, and makes an excellent syrup.

"The white mulberry, it is supposed, first came from China, where it is

still found growing wild; and the Chinese first cultivated it for

feeding silkworms as early as 2700 years before the Christian era. The

tree is now found in every civilised country, growing either as an

ornament of the shrubbery, or for the manufacture of silk.

"The next species is the black mulberry (_Morus nigra_), so called on

account of the colour of its fruit, which is of a dark purple, nearly

black. This kind came originally from Persia, but is now, like the

white mulberry, found in all civilised countries. It is cultivated more

for ornament and shade than for feeding silkworms; though it is put to

this use in some parts, especially in cold climates, where the other

species does not thrive. They are easily distinguished from each

other--the bark of the black being much rougher and darker. The wood of

the latter is not so firm nor heavy as the white, but it is also

durable, and is used in England for hoops, wheels, and ribs of small

vessels. In Spain, Italy, and Persia, they prefer the leaves of the

black for feeding the silkworm. They are also eaten by cattle, sheep,

and goats. The roots when prepared are used as a vermifuge. The fruit

has a pleasant aromatic taste; and is eaten both raw and in preserves,

or mixed with cider makes an agreeable drink. The Greeks distil a clear

weak brandy out of them; and in France they make a wine from these

mulberries--which must be drunk while it is new, as it soon turns to

vinegar. This fruit is good for fevers and rheumatisms; and it is much

sought after by birds and all kinds of poultry, who devour it greedily.

"So much for the white and black mulberry-tree. We now come to the

third species, the red (_Morus rubra_).

"That is the red before your face," continued Lucien, pointing to the

trees, which he had already designated. "It is so called from the

fruit, which, as you know, are of a dark red colour, and resemble red

raspberries more than anything in the world. Some of these trees, you

see, are nearly seventy feet in height, though it usually does not reach

so high. You notice the leaves. The are heart-shaped, many of them ten

inches long, and nearly as broad as long. They are dark green and

rough, and for feeding the silkworm quite useless where the white

mulberry grows. They form a delightful shade, however; and this is one

of the uses of this beautiful tree. The fruit, too, is, in my opinion--

and I think Francois will agree with me--quite equal to the best

raspberries. As for the wood, it is much used in the dockyards of the

Southern states. It is of a pale lemon colour; and is considered more

durable for trenails than any other--that of the locust excepted.

"The red mulberry, like the white and black species, runs into several

varieties, differing considerably from each other.

"There is still a fourth species of this genus, called the paper

mulberry (_Morus papyrifera_). This, however, has been separated by

botanists into another genus; but it is worth a word here, as it is a

very curious and valuable tree, or, rather, a large shrub, for it does

not grow so tall as either of the other three. It is a native of China,

Japan, and the islands of the Pacific Ocean; but, like the others, it is

cultivated for ornament both in Europe and America. Its fruit, which is

of a scarlet colour, is globe-shaped, and not oblong, as that of the

true mulberries; and this is one reason why it has been separated into a

genus by itself. Its leaves are of no use for silk-making, but they

make excellent food for cattle; and as the tree grows rapidly, and

carries such large bunches of leaves, some people have said that it

would yield better than grass, and should be cultivated for pasture. I

do not know whether this has been tried yet. The most interesting part

of the paper mulberry is its bark, which is used in the manufacture of

paper both in China and Japan. The beautiful India paper used for

engravings is made from it, and so, too, is the fine white cloth worn by

the natives of the Society Islands, and which so much astonished

Europeans when they first saw it. It would be interesting to detail the

process of manufacturing this cloth as well as the paper, but it would

take up too much of our time at present.

"There is another genus of trees which resembles the mulberries very

much. They are valuable for their wood, which produces a fine yellow

dye, known by the name of `fustic-wood.' The tree that produces the

best of this dye is the _Morus tinctoria_, and grows in the West Indies

and tropical America; but there is a species found in the southern

United States, of an inferior kind, which produces the `bastard fustic'

of commerce.

"So much, then, for the mulberry-tree; but I fear, brothers, I have left

but little time to describe the others."

"Oh! plenty of time," said Basil; "we have nothing else to do. We are

better learning from you than rambling idly about; and upon my word,

Luce, you make me begin to take an interest in botany."

"Well, I am glad of that," rejoined Lucien, "for I hold it to be a

science productive of much good, not only on account of its utility in

the arts and manufactures, but to the mind of the student himself; for,

in my belief, it has a refining influence."

And Lucien was about to continue his description of the trees, when a

series of incidents occurred which put an end to the conversation, at

least upon that subject.

These incidents are recorded in the chapter which follows.

The Boy Hunters · 第 22 / 75 题