Few cities can boast of such a variety of beautiful scenery in its immediate vicinity as occurs within a short distance from Dublin. We need not allude to the objects of deep historical interest with which the natural beauties of Dublin are associated, as they have often been illustrated in these pages. The picturesque beauties of Dublin Bay and the county of Wicklow are known to all; but it is less generally known that the same localities abound in matters well calculated to excite the curiosity of the naturalist. From the great variety of rocks, and consequently of soil, around Dublin, we find a corresponding variety in its vegetable productions; and we believe we are pretty correct when we state that the botanist may collect specimens of nearly two-thirds of the indigenous plants of Ireland within the distance of a few miles from the capital. As regards Zoology, or the study of animals, our position is equally fortunate. The shores near Malahide are uncommonly rich in marine productions, especially shells; and the Bay of Dublin is not inferior to the coasts of Devonshire for the variety of its zoophytes and corallines. In the work of Ellis on British Corallines, we find that, although that admirable naturalist resided in London, he obtained many of his finest specimens from Dublin. In respect to mineralogical and geological pursuits, we are equally well situated. At Killiney and in the mines of Wicklow several interesting and some very rare minerals may be collected. In geology, in the strict sense of the word, there are many curious phenomena which should be repeatedly examined by the student, and he will find such a mode of proceeding infinitely more profitable than the more indolent method of confining his researches to such instruction as can be found in books and sections. At Howth, or the promontory of Bray, he may examine every diversity of stratification, and may observe all the upheavings and contortions to which rocks have been exposed, displayed as in a model, open to the contemplation of the man of science, and to the instruction of all. The granite veins of Killiney are also extremely curious, and well deserve to be repeatedly visited by the beginner in geological pursuits. It is true that the questions to which such phenomena gave rise have been long since set at rest; but it is also true that the questions must be mastered by every student, and we know of no place where this can be done to more advantage than at Killiney.