Mushroom growing is a fascinating hobby and many gardeners take it up seriously, as others do orchid growing, solely because of its absorbing interest. There is a general impression that is difficult but that is hardly true; it would be more apt to say that it is different in the sense that few, if any, of the ordinary rules of gardening apply to the cultivation of mushrooms. This early work by Arthur J. Simons is now republished with a brand new introduction.