It is a capital plan for children to keep a calendar – the first oak-leaf, the first tadpole, the first cowslip, the first catkin, the first ripe blackberries, where seen, and when. The next year they will know when and where to look out for their favourites, and will, every year, be in a condition to add new observations. Think of the zest and interest, the object, which such a practice will give to daily walks and little excursions. There is hardly a day when some friend may not be expected to hold a first ‘At Home.’