It requires long practice for girls to excel in coloring. Many grades of skill are required to color lithographs, and there is much difficulty in making all the copies exactly like the first. Some need a treatment so nearly approaching the artistic, that scarcely any one who has the skill can be found to give his labor for the price, which is necessarily limited. We gained no information as to the amount of wages paid to the colorists, but, judging from the price of a very beautiful specimen (29 cents), it must be sadly inadequate. The scientific societies are the main support of this business. The Government, indeed, gives very extensive orders, but there is always so much competition to obtain them, that the profit is small. Audubon was the greatest encourager of this branch of industry. This employment is very desirable in every respect for educated women; and although machinery for printing in colors is fast encroaching on it, yet it will long offer a field for female enterprise. Our informant employs from 100 to 300 hands, according to the prosperity of the times. A commercial crisis affects this as well as all other trades. One of the firm of the best lithographic establishment in New York, told me they pay their men for drawing on stone from $25 to $30 a week. The time required to learn lithography, he thought, would depend much on natural talent. A good knowledge of drawing is necessary. He thought men would soon get over the opposition of women entering the business; but they did not like the restraint of working where women are. They would soon become accustomed to it; and if they were women of the right kind, it might be a very beneficial restraint. But, as to that, women could do the work at home. Many Germans, well acquainted with the art, are engaged in crayoning. When they first come to this country, they work for lower wages than Americans, but after a while learn their value, and ask as much as any one else. On account of the low wages for which foreigners can usually be had, but few Americans have prepared themselves for this occupation. But when work is plenty, and the individual industrious and skilful, he can earn good wages. Seven eighths of the work done for this country is executed in New York. The agent of a lithographic company writes: "Drawing on stone could be done by women as well as men; and would open to them a very genteel and remunerative branch of business. The drawing is now done mostly by Germans and Frenchmen; but ladies who have a taste for drawing could soon learn this art. The usual price for such artists now is from $12 to $35 per week." Prof. P., of New York, gives instruction in lithography, charging $12 per quarter of eleven weeks--two lessons per week. Special arrangements are made with pupils who intend to devote themselves to the profession as artists or teachers. A gentleman remarked to me that Mr. S., a certain distinguished lithographer of this city (New York), would make an