A St. Louis doctor factory recently turned out a dozen female doctors. As long as the female doctors were confined to one or two in the whole country, and these were experimental, the Sun held its peace, and did not complain; but now that the colleges are engaged in producing female doctors as a business, we must protest, and in so doing will give a few reasons why female doctors will not prove a paying branch of industry. In the first place, if they doctor anybody it must be women, and three-fourths of the women had rather have a male doctor. Suppose these colleges turn out female doctors until there are as many of them as there are male doctors, what have they got to practice on?