Some authorities consider all Boleti fit for table use, but there are those which are too bitter for food, and one such as the specimen numbered 1, Plate XI., would spoil a whole stew. The tubes of this Boletus (_felleus_) are light rose, although they appear to be white when fresh and young. A good rule for amateurs is to avoid all the lurid Boleti; by this is meant all those that have the slightest shade of red to the tubes, although I have often eaten of such. The mild-colored members of this family, having white, yellow, or greenish tubes, if pleasant to the taste, may be considered safe eating. Plate VIII. represents some of the esculent puff-balls. There are some warty fungi growing on wood, which, in early growth, resemble puff-balls, whose qualities are not yet known. But all those varieties of clear white fungi, which appear in little balls on the open ground after rains, may be eaten with perfect safety, if fresh, white inside, and hard; if soft and yellowish, or black in the pulp, they should be avoided, as they are approaching decay. The most important advice to the student is to learn to recognize the Amanita family, and to avoid them all; next, to define and recognize any mushroom he is using for food, so that he could pick a single specimen of the same out of a basketful of assorted fungi; and finally, never to pick mushrooms at random for food, unless he has tested by actual use each and all of the varieties so used. There is a large family of mushrooms resembling the Russulas, which exude a milky juice if broken or cut. The amateur will do well to avoid all such, although they are esculent where the milk is mild to the taste. Additional plates, displaying other varieties of esculent mushrooms, may possibly be issued in the future. JULIUS A. PALMER, Jr. [Illustration: PLATE I. AGARICUS CAMPESTRIS ET ARVENSIS, OR MUSHROOM PROPER. =DESCRIPTION.= PILEUS. Dry, silky or downy from the first; globular, margin united to the stem by the veil, then expanded, bell-shaped, at last even flat. Color variable, from white to dark brown. Cuticle easily separable in pasture variety. GILLS. At first pink, then purple, finally almost black, never white; of different lengths. STEM. Nearly solid, even in size, easily removed from the socket. VOLVA. None; but veil present, at first enclosing gills, then making a ring, finally absent. SPORES. Purple or purplish brown. TASTE and SMELL fragrant and agreeable. GROWS in open pastures, lanes or roadsides; never in forests. (B.) Similar to above, but coarser, more brittle and of stronger flavor; turns rust of iron color when bruised; grows on banks, street-sweepings and in hot-houses. =TO COOK.= Stew in milk or cream; prepare to serve with meat as described under Plate II., or broil as directed under Plate III.