At Horticultural Hall the principal regret is that Prof. Tracy was obliged to leave to attend to other business; not, however, without leaving an indelible mark behind him. The success of the Horticultural department is assured, whatever may overtake any other portion of the Exposition.

The most conspicious object in the building is a splendid Cocos nucifera, about 20 feet high, and in fruit. Nearly opposite, on the other side of the fountain, is a Cereus giganteus, 20 feet high, with several smaller Cocos, Oreodoxia regia Musa sapienta, and some large Ficus and Cycas revoluta; and to crown all a beautiful specimen of Phoenix dactylifera. I think it is the most beautiful part of the whole concern.

The greenhouse department is all hung around with Orchids, Mexican, Central American, and British Honduras varieties. Several are in bloom, such as Epidendrum, Odontoglossum, and Oncidium in variety; also, Lycaste, and Cattleya Guatamaliensis. A local firm, Maitre & Cook, exhibit over 30 varieties of Palms; they have also a general collection, in which may be noticed a splendid specimen of Blechnum Brazi-liensis, and another, of Astrapaea Wallichii, a good thing; also a collection of Rex Begonias, and outside, roses and ornamental stuff.

Prof. Morriss, from Jamaica, has the most interesting exhibit in the building, consisting of over 50 varieties of Palms, and the nomenclature is perfect. Such good things as Areca lutesens and rubra, strong; Elaeis guinaensis and others, choice but small, in Bamboo pots; a splendid little case of Hymenophyllums and other rare ferns; over 40 varieties of sugar cane; a collection of Cinchona, together with a collection of all the fruits and nuts that have been acclimatised or are peculiar to that Island.

The next largest exhibit of general interest is from California. John Rock, of Santa Clara county, is well to the front with fruit trees, roses, conifers, evergreen and deciduous flowering and other ornamental stuff; such Palms as Corypha australis, Chamaerops humilis and excelsa, Pritch-ardia filifera and var. robusta, and others; all well grown, handsome stuff.

A great many shining lights in the horticultural world have been here lately, among them Prof. Lemmon, from California, and Mr. Hovey, of Boston. A walk through the houses, is a pleasure not often enjoyed in a lifetime, with a plantsman of such taste and discrimination as Mr. Hovey. Mr. McRoberts while here represented A. Brack-enridge, the great orchid grower, near Baltimore. Gardener to Prof. Richardson, New Orleans.