intervals during his regular professional work.

More than one of the originals of the accompanying colored plates have been hidden in this portfolio for over twenty years, and a larger number for ten or fifteen years, awaiting the further accumulation of that knowledge and experience, especially with reference to the edibility of species, which should warrant the utterance of the long-contemplated book.

The reader will therefore kindly remember that out of the approximate 1000 odd species of fungi entitled by their dimensions to the dignity of "toadstools" or "mushrooms"—after separating the 2000 moulds, mildews, rusts, smuts, blights, yeasts, "mother," and other microscopic species—and out of the 150 recommended edible species, the present work includes only about thirty. This selection has direct reference to popular utility, only such species having been included as offer some striking or other individual peculiarity by which they may be simply identified, even without so-called scientific knowledge.

The addition of color to the present list enables its extension somewhat beyond the scope of a series printed only in black and white, as in the distinction of mere form alone an uncolored drawing of a certain species might serve to the popular eye as a common portrait of a number of allied species, possibly including a poisonous variety.

While the study of "fungi" has a host of devotees, the mysteries which involve the origin of life in this great order of the cryptogamia having had fascinating attractions to microscopical students and specialists, the study of economic mycology has been almost without a champion in the United States. Thus we have many learned treatises on the nature, structure, and habits of fungi—vegetative methods, chemical constituents, specific characters, classification—learned dissertations on the microscopical moulds, mildews, rusts and smuts, blights and ferments, to say nothing of the medico-scientific and awe-inspiring potentialities of the sensational microbe, bacterium, bacillus, etc., which are daily bringing humanity within their spell and revolutionizing the science of medicine. But among all the various mycological publications we look in vain for the great desideratum of the practical hand-book on the economic fungus—the mushroom as food! The mycologist who has been courageous enough to submit his chemical analysis and his botanical knowledge of fungi to the test of esculence in his own being is a rara avis among them; indeed, a well-known authority states that "one may number on the fingers of his two hands the entire list of mycophagists in the United States." The absence of such works upon the mushroom and "toadstool," greatly desired for reference at an early period of my career, and little better supplied to-day, led to a resolve of which this volume is but an imperfect fulfilment.

The special character of my volume, then—the collateral consideration of the fungus as food—will be sufficient excuse for the omission of a merely technical discourse upon the structure, classification, and vegetation of fungi as a class—a field so fully covered by other authors more competent to discuss these lines of special science, and to a selection of whose works the reader is referred in the list herewith appended, to a number of which I am indebted for occasional quotations. A general idea of the methods of dissemination and habitats of fungi will be found in the final chapter on "spore-prints," while under the discussion of the "Amanita," Agaricus campestris, and the "Fairy Ring" the reader is referred to a condensed account of the methods of vegetation and growth of fungi sufficient for present purposes. Other references of similar character will be noted under "Fungi," in Index.

The most conspicuous disciple of mycophagy—almost the pioneer, indeed, in America—was the late Rev. M. A. Curtis, of North Carolina, whose name heads the bibliography on page 325. For the benefit of those of my readers who may wish to follow the subject further than my pages will lead them, I append the list of edible species of fungi contained in Curtis's Catalogue, each group alphabetically arranged, the esculent qualities of many of which he himself discovered and attested by personal experiment. The favorite habitat of each fungus is also given, and to avoid any possibility of confusion in scientific nomenclature or synonymes, the authority for the scientific name is also given in each instance:

LIST OF EDIBLE AMERICAN MUSHROOMS

FROM THE CATALOGUE OF DR. M. A. CURTIS