Plant foods, which as we have said are commercially prepared additives designed to replenish soil depleted by constant use, are made in tablet and powder form. They are soluble in water and are fed to the plants in liquid form. These plant foods offer the householder many advantages over the use of manure or manure distillations. In the first place, they are odorless, and take up a minimum of space. Then they are scientifically prepared, and come with specific instructions on how and when to use them. Here again, as with soils, we feel there is no advantage in attempting to concoct what will unfortunately always be inferior to a good commercial product which is readily available.