THAT clay need not necessarily be the bane it so often proves to be, where gardeners are concerned, has been amply proved by Professor and Mrs. Mottram themselves ; for, over a period of several years, they have persistently struggled with this difficult soil and have obtained quite astonishing results. The. practical experience gained by them in this direction should be of considerable interest to the many would-be gardeners among listeners who are deterred by the nature of the soil with which circumstances compel them to cope.