We now arrive at Border No. 13, opposite the Stationery Court, the largest and most prominent tree in which is the _Eucalyptus globulosus_, or Blue Gum-tree of Australia. This plant has already attained the height of 80 feet, and is but five years’ growth. In its natural state this is a Mammoth tree. Mr. Backhouse, the traveller, has described one of this kind, which was nearly as high as the great Water Towers at the Crystal Palace, being 250 feet, with a circumference at the base of 70 feet. But this was most probably an exceptional specimen. They are most frequently not more than half that size. The common Myrtle is the type of the class to which this tree belongs; but it is the largest of the myrtaceous plants. The _Eucalypti_ constitute four-fifths of the forests of New Holland. Gum is procured from this tree in large quantities. Round the column, in the corner of Border No. 13 _a_, is a fine plant of the Cape Gooseberry, which bears a beautifully acid fruit, much esteemed by some. The fruit is curiously inclosed in an inflated capsule. Although called the Cape Gooseberry, this plant is originally from Australia. In this Border are various specimens of New Zealand and Australian plants. The remaining Border, before we enter the Central Transept, is filled mostly with a collection of large _Acacia_. Having crossed the Central Transept, as we proceed toward Border No. 19, which is in front of the Egyptian Court, we pass Border No. 17, which is filled with _Eucalypti_, as that in a corresponding position on the other side of the Transept is with _Acaciæ_.