In turning over the voluminous records of our travels abroad, we pause more particularly at those passages of our journals which relate to the study of Natural History. In these occur frequent references to agreeable pedestrian rambles undertaken alone, or in the company of unaffected friends, in France and Switzerland, Italy and its islands: of whole days spent, and twilight at last surprising us still bending over the unexplored treasures of unexhausted museums. Of Paris winters cheerfully passed in the _enceinte_ of the class-rooms of the Sorbonne; of pleasant occasions in which our ears refused to take cognisance of the sound of town clocks and dinner bells, while our eyes were so agreeably forgetting themselves amid the profusion and variety of southern fish and bird markets. On this, if on any portion of our by-gone life, we look back with sadness indeed, but with a sadness unembittered by regrets; our only sorrow here being, that we knew not earlier in life those studies of which it may be pre-eminently said, that while they "delight abroad they hinder not at home." Happy indeed are the children who dream of butterflies, and wise the parents who encourage theirs to intertwine objects of natural history with their earliest associations! Not only has this charming study a strong tendency to confirm the health, to embellish the mind, and to improve the moral character of those who pursue it; "Pour le bien savourer, c'est trop peu que des sens; Il faut une âme pure et des goûts innocens;"