To become acquainted with the bulkier of these villains, we must visit their favorite haunts. An occasional one may occur in any kind of place, as has already been explained. A good many, especially of the edible sort, and notably the common mushroom, grow in open pastures. To get among crowds of them, however, we must resort to close woods, especially of fir and pine. There they grow on tree-stumps, fallen trunks, and on the ground, in great variety and abundance. If we go at the proper season their profusion will astonish us. This time of plenty varies from early to late autumn with the character of the weather. Clad in waterproof wraps and with leather gloves on hand, we may make a fungus foray into the dripping woods amid russet and falling leaves with comparative comfort; and even on a “raw rheumatic day” there will likely be much enjoyment for us and still more instruction. It will be strange, indeed, if we do not find some kinds to eat and very many to think over. We ought to get examples, at least, of nearly all the different families. Let us consider them in a general way as novices do. A host of them have gills like the mushroom; and so we may take that best known of them all as a type of the whole class. Mushroom spawn runs through the soil in a rootlike way, absorbing the organic matter it falls in with and every here and there swelling out into roundish bodies, each consisting of a tubercle enclosed in a wrapper. The tubercle bursts through the wrapper as growth goes on, and soon above ground appears the well-known form of the mushroom, with a stalk supporting a fleshy head by the center, and on the under surface of this head radiating gills, which are at first covered by a veil that finally gives way and leaves only a ring round the stem. These gills are originally flesh-colored, but afterward become brown and mottled with numerous minute purple spores. If we were to investigate further by means of the microscope, we should find that the spores are not contained in any case, and that they are produced in fours on little points at the tips of special cells. Of the other kinds belonging to this order of agarics, some differ from the mushroom in being poisonous and others in being parasitic. There is much variety, also, in the tints of gill and spore, different kinds having these white, pink, rosy, salmon-colored, reddish, or yellowish, or darkish brown, purple or black. Again, in some the stem is not central, but attached more or less laterally to the head; in others there is no stem, and the gills radiate out from the substance on which the agaric grows. The ring round the stalk, too, often varies, or is sometimes wanting. There are many other differences, and it is by these that we are able to distinguish the one kind from the other: but, of course, little more can be done here than merely to indicate this infinite variety. Dr. Badham, in his admirable work on the “Esculent Funguses of England,”