11 study of some branch of natural history for the first time. Every one of our members who may possess any special knowledge will, I am sure, gladly lay open the stores of his information for the assistance of such beginners. Were I asked how such studies ought to be commenced, I would un- hesitatingly say—begin by making a collection. Fix upon some group of animals or plants that may specially appeal to your interest, and get together as many species as you can, collecting them in all cases where possible with your own hand, and noting their habits and localities in so doing. You will thus get together a certain amount of raw materials which will require further study in order to arrange them; you are in the position of a child with a dissected puzzle, and the problem before you is to arrange your collection naturally—i.e., to bring together those forms that are akin and to separate those which are not allied. In this way by referring to standard works, or still better to living authorities, the great principle of biological classification will gradually dawn upon you, the organic forms by which you are sur- rounded will become imbued with a new interest, you will be born again into the kingdom of nature, and the lowliest plant or the most minute insect that you had formerly passed un- heeded by will no longer be in your eyes as unmeaning frag- ments, but will become portions of a great system—parts of that " Stupendous whole, Whose body Nature is, and God the soul." In order to grasp this principle of classification thoroughly and scientifically, it is not sufficient to know that this or that book catalogues the species in such or such order. You must ask in every particular case why these species have been grouped together and those separated from them. The system of making a collection first and then arranging it from some already classified cabinet is, I am persuaded, a most pernicious one so far as the educational value of collecting natural history specimens is concerned. It is those who have accu- mulated row upon row of insects without any ultimate object in view beyond the mere possession of specimens who have made of "the mere collector" a "nayword and a common