At the meeting of June 21 st, the leading attraction of the exhibition was a tastefully arranged collection of water lilies from C. H. Hovey, comprising, besides our beautiful native species, Nymphsea odorata and the rose-colored variety of the same, N. ccerulea, N. sphaerocarpa and N. sphasrocarpa rosea. From the Cambridge Botanic Garden came an interesting collection comprising Lilium tenuifolium, L. pulchellum, Pentstemon secundiflorus, Papaver umbrosum, Cypripedium Lawrencianum and Echinopsis Zuccariniana. John C.Hovey presented Thalictrum aquilegifolium and two new herbaceous paeonies of very delicate and beautiful colors, raised by John Richardson, and named Francis B. Hayes and John G. Baker. H. H. Hunnewell sent another collection of rhododendrons, among which were Sir Joseph Whitworth, Caractacus, Fastuosum fl. pl., Mrs. John Waterer, Picturata, Marchioness of Lansdowne, Lady Armstrong, Mrs. Mendel, Mrs. John Clutton, Henry Winthrop Sargent, J. Marshall Brooks and Con-cessum. Miss S. W. Story contributed a variety of cut flowers.