Having got our gold-mines discovered and claimed, I will try to give you a faint idea of how they work them. Here, in the mountains, the labor of excavation is extremely difficult, on account of the immense rocks which form a large portion of the soil. Of course no man can work out a claim alone. For that reason, and also for the same that makes partnerships desirable, they congregate in companies of four or six, generally designating themselves by the name of the place from whence the majority of the members have emigrated; as, for example, the Illinois, Bunker Hill, Bay State, etc., companies. In many places the surface soil, or in mining phrase, the top dirt, pays when worked in a long-tom. This machine (I have never been able to discover the derivation of its name) is a trough, generally about twenty feet in length and eight inches in depth, formed of wood, with the exception of six feet at one end, called the "riddle" (query, why "riddle"?), which is made of sheet-iron perforated with holes about the size of a large marble. Underneath this colander-like portion of the long-tom is placed another trough, about ten feet long, the sides six inches, perhaps, in height, which, divided through the middle by a slender slat, is called the riffle-box. It takes several persons to manage properly a long-tom. Three or four men station themselves with spades at the head of the machine, while at the foot of it stands an individual armed "wid de shovel an' de hoe." The spadesmen throw in large quantities of the precious dirt, which is washed down to the riddle by a stream of water leading into the long-tom through wooden gutters or sluices. When the soil reaches the riddle, it is kept constantly in motion by the man with the hoe. Of course, by this means, all the dirt and gold escapes through the perforations into the riffle-box below, one compartment of which is placed just beyond the riddle. Most of the dirt washes over the sides of the riffle-box, but the gold, being so astonishingly heavy, remains safely at the bottom of it. When the machine gets too full of stones to be worked easily, the man whose business it is to attend to them throws them out with his shovel, looking carefully among them as he does so for any pieces of gold which may have been too large to pass through the holes of the riddle. I am sorry to say that he generally loses his labor. At night they pan out the gold which has been collected in the riffle-box during the day. Many of the miners decline washing the top dirt at all, but try to reach as quickly as possible the bed-rock, where are found the richest deposits of gold. The river is supposed to have formerly flowed over this bed-rock, in the crevices of which it left, as it passed away, the largest portions of the so eagerly sought for ore. The group of mountains amidst which we are living is a spur of the Sierra Nevada, and the bed-rock, which in this vicinity is of slate, is said to run through the entire range, lying, in distance varying from a few feet to eighty or ninety, beneath the surface of the soil. On Indian Bar the bed-rock falls in almost perpendicular benches, while at Rich Bar the friction of the river has formed it into large, deep basins, in which the gold, instead of being found, as you would naturally suppose, in the bottom of it, lies, for the most part, just below the rim. A good-natured individual bored me, and tired himself, in a hopeless attempt to make me comprehend that this was only a necessary consequence of the undercurrent of the water, but with my usual stupidity upon such matters I got but a vague idea from his scientific explanation, and certainly shall not mystify you with my confused notions thereupon.

When a company wish to reach the bed-rock as quickly as possible, they sink a shaft (which is nothing more nor less than digging a well) until they "strike it." They then commence drifting coyote-holes, as they call them, in search of crevices, which, as I told you before, often pay immensely. These coyote-holes sometimes extend hundreds of feet into the side of the hill. Of course they are obliged to use lights in working them. They generally proceed until the air is so impure as to extinguish the lights, when they return to the entrance of the excavation and commence another, perhaps close to it. When they think that a coyote-hole has been faithfully worked, they clean it up, which is done by scraping the surface of the bed-rock with a knife, lest by chance they have overlooked a crevice, and they are often richly rewarded for this precaution.

Now I must tell you how those having claims on the hills procure the water for washing them. The expense of raising it in any way from the river is too enormous to be thought of for a moment. In most cases it is brought from ravines in the mountains. A company, to which a friend of ours belongs, has dug a ditch about a foot in width and depth, and more than three miles in length, which is fed in this way. I wish that you could see this ditch. I never beheld a natural streamlet more exquisitely beautiful. It undulates over the mossy roots and the gray old rocks like a capricious snake, singing all the time a low song with the "liquidest murmur," and one might almost fancy it the airy and coquettish Undine herself. When it reaches the top of the hill, the sparkling thing is divided into five or six branches, each one of which supplies one, two, or three long-toms. There is an extra one, called the waste-ditch, leading to the river, into which the water is shut off at night and on Sundays. This race (another and peculiar name for it) has already cost the company more than five thousand dollars. They sell the water to others at the following rates. Those that have the first use of it pay ten per cent upon all the gold that they take out. As the water runs off from their machine (it now goes by the elegant name of "tailings"), it is taken by a company lower down, and as it is not worth so much as when it was clear, the latter pay but seven per cent. If any others wish the tailings, now still less valuable than at first, they pay four per cent on all the gold which they take out, be it much or little. The water companies are constantly in trouble, and the arbitrations on that subject are very frequent.

I think that I gave you a vague idea of fluming in a former letter. I will not, therefore, repeat it here, but will merely mention that the numerous fluming companies have already commenced their extensive operations upon the river.

As to the rockers, so often mentioned in story and in song, I have not spoken of them since I commenced this letter. The truth is, that I have seldom seen them used, though hundreds are lying ownerless along the banks of the river. I suppose that other machines are better adapted to mining operations in the mountains.

Gold-mining is nature's great lottery scheme. A man may work in a claim for many months, and be poorer at the end of the time than when he commenced, or he may take out thousands in a few hours. It is a mere matter of chance. A friend of ours, a young Spanish surgeon from Guatemala, a person of intelligence and education, told us that after working a claim for six months he had taken out but six ounces.

It must be acknowledged, however, that if a person work his claim himself, is economical and industrious, keeps his health, and is satisfied with small gains, he is bound to make money. And yet I cannot help remarking that almost all with whom we are acquainted seem to have lost. Some have had their claims jumped. Many holes, which had been excavated and prepared for working at a great expense, caved in during the heavy rains of the fall and winter. Often, after a company has spent an immense deal of time and money in sinking a shaft, the water from the springs (the greatest obstacle which the miner has to contend with in this vicinity) rushes in so fast that it is impossible to work in them, or to contrive any machinery to keep it out, and for that reason, only, men have been compelled to abandon places where they were at the very time taking out hundreds of dollars a day. If a fortunate or an unfortunate (which shall I call him?) does happen to make a big strike, he is almost sure to fall into the hands of the professed gamblers, who soon relieve him of all care of it. They have not troubled the Bar much during the winter, but as the spring opens they flock in like ominous birds of prey. Last week one left here, after a stay of four days, with over a thousand dollars of the hard-earned gold of the miners. But enough of these best-beloved of Beelzebub, so infinitely worse than the robber or murderer; for surely, it would be kinder to take a man's life than to poison him with the fatal passion for gambling.

Perhaps you would like to know what class of men is most numerous in the mines. As well as I can judge, there are upon this river as many foreigners as Americans. The former, with a few exceptions, are extremely ignorant and degraded, though we have the pleasure of being acquainted with three or four Spaniards of the highest education and accomplishments. Of the Americans, the majority are of the better class of mechanics. Next to these, in number, are the sailors and the farmers. There are a few merchants and steamboat-clerks, three or four physicians, and one lawyer. We have no ministers, though fourteen miles from here there is a rancho kept by a man of distinguished appearance, an accomplished monte-dealer and horse-jockey, who is said to have been, in the States, a preacher of the Gospel. I know not if this be true, but, at any rate, such things are not uncommon in California.

I have spun this letter out until my head aches dreadfully. How tiresome it is to write sensible(?) things! But I have one comfort: though my epistle may not be interesting, you will not deny, my dear M., that I have achieved my ambition of making it both commonplace and utilitarian.