Applying the reclamation process to the whole of the country, it should be possible to secure from 28,000,000 to 32,000,000 lb. of banana stalk, giving from 2,350,000 to 2,700,000 lb. of dried matter containing 13·7 per cent. of potash--from 321,000 to 370,000 lb. of potash--during the year. If the stalks were carbonized they would yield from 675,000 to 771,428 lb. of ash containing from 320,000 to 366,000 lb. of pure potash. This may represent but a small fraction of the total agricultural consumption of 22,000 tons per annum, but it would be a contribution from a waste product which now has to suffer destruction with the total loss of all beneficial values. The primary difficulty, of course, would be in connection with the recovery of the stalks, but a reorganization of our selling methods, such as the compulsory return of the denuded stalks to the fruit markets for ultimate bulk collection, would go a long way towards the solution of this problem. The question arises as to whether we should not find it advisable to dispose of all vegetable and fruit waste along individual lines, inasmuch as other refuse of this character contains potash in varying proportions. By the establishment of a small, inexpensive and suitable furnace in the markets for the treatment of all waste it would be possible to recover valuable fertilizing ash in sufficient quantities to allow bagging and sale upon the spot. Such treatment would be no more expensive than that in operation to-day, involving transport to, and combustion in, the destructor. Tobacco is another product rich in potash, particularly the ash. Here recovery would prove an exceptionally difficult task, but it has been suggested that the conservation of ash and the discarded ends of cigars and cigarettes from clubs, hotels, and other centres possessing smoking-room amenities might be encouraged. The total during the year would be impressive. Certainly collection from such quarters would not be attended with difficulty, while the price payable for the residue might be made sufficiently attractive as to induce the attendants to garner this residue. So far as the exploitation of waste for potash content in this country is concerned only one established practice, which is extremely precarious, has ever met with recognition upon a limited scale. This is the extraction of the precious substance from kelp, or _vraic_, to mention two of the names under which the familiar seaweed is known. The treatment of this waste is conducted along crude lines, but it is doubtful whether our available knowledge could suggest a more skilled method. British seaweed does not resemble that recovered off the coasts of Japan and the Pacific seaboard of the United States, where the recovery of potash from this residue from the sea has become an established industry.