“It may be necessary to remark in order the degree of cold the plants were subjected to. Although the winters in Ireland are in general very mild, the intensity of the frost during the last five winters has been occasionally very great, as in December, 1819, the thermometer once fell to 15° Fahr.; in January, 1820, to 16° Fahr.; in February, 1821, to 16° Fahr.; in December, 1822, to 25° Fahr.; in January, 1823, to 15° Fahr.; and on December 3, 1824, to 18° Fahr.” He gives a list of thirty-seven plants, chiefly natives of Chili, China, New South Wales, and the South of Europe, planted in the open air, and among them “_Veronica decussata_, a native of the Falkland Islands, the only shrubby species of the genus. _Olea europea_, which was unprotected for the last seven years. _Ligustrum lucidum_: one plant in the open border was now six feet high [it is now twenty feet]. _Pittosporum tobira_, lately introduced, stood without protection. _Solanum bonariense_ stood planted near a wall. _Cassia stipulacea_ stood out by a wall, in a south-east exposure, for the last eight years, and produced copiously its showy blossoms in April and May, but required some mat protection in severe weather. _Aristotelia Macqui_: one specimen is now fourteen feet high; it retains its leaves in mild winters, but drops them in spring before another set is produced. _Mespilus japonica_ (Loquat) grows to a large size, retains its leaves throughout the winter, but never flowers; and _Melaleuca alba_ stood out on a south-east wall for the last five years, and blossomed last summer.”[174] James Townsend Mackay was the author of the _Flora Hibernica_, published in Dublin in 1836. He was made an honorary LL.D. of the University of Dublin in 1849. He was an excellent botanist, and his name is still kept in grateful and pleasant memory in the Gardens which he laid out, and which he so ably managed for over forty years. Harvey named after him a beautiful acanthaceous plant, _Mackaya bella_. On his decease Mr. John Bain was appointed Curator, and on his retirement on an annuity Mr. Frederick Moore was appointed, on whose succeeding his well-known father, Dr. David Moore, in the care of the Botanical Gardens, Glasnevin, the post was given to F. W. Burbidge, M.A.--about all of whom, as happily still living, we cannot write. The outer garden, which runs along two sides of the ground originally enclosed, is surrounded by a lofty iron railing. This space has been most judiciously planted with trees and shrubs. Hollies in variety are especially luxuriant. Advantage has also been taken of the wall, which is now covered with many choice plants, among which may be mentioned fine plants of _Magnolia grandiflora_, which in some years flower profusely; _Colletia ferox_ and _C. cruciata_, large specimens of _Pyrus japonica_, _Wistaria sinensis_, _Chimonanthus fragans_, _Choisya ternata_, _Smilax latifolia_, and many such like.