22. Galanthus nivalis, and Lamium amplexicaule, are in blossom in gardens at Cambden.
24. Populus fastigiata, and Salix caprea, are in full bloom.—The gooseberry bushes shoot their leaves.
25. Populus angulata in blossom at Cambden.
26. Salix babylonica begins to blossom and shoot the leaves. Viburnum prunifolium is budding.
27. Draba verna? is in seed already in Cambden: the Rhododendron maximum begins to shoot in gardens.
28. Juniperus virginiana is in bloom. Saxifraga virginica begins to show its flowers. Laurus benzoin, and Cornus florida, are budding.
April 1. In the morning, a large flight of wild geese went over the city northwards, making a great noise. In the afternoon there was a thunder storm from the southwest.
2. The frogs begin to croak. Found in blossom near Cambden, Arabis rotundifolia, Raf., A. lyrata, Saxifraga virginica, Draba verna? Betula lenta, &c. Pinus inops is budding.
3. Seen the first swallow. Found in blossom on the Schuylkill, Fumaria cucullaria, Anemone thalictroides, Saxifraga virginica, many ferns and mosses.