PRESIDENTIAL ADDRESS. 245 chemist did not intend to make a preservative when he discovered formaldehyde; it was only by accident he found out the practical use to naturalists and anatomists of what was to him, in the first instance, of merely scientific interest. Here again, we have an example of the importance of the useless. I believe more and more sincerely that the gravest danger that science has is the outcry for that which was immediately beneficial to indus- tries or to human life or enjoyment. The cabbage held in front of the nose of the donkey, without which the donkey would not move, was surely not needed for the scientific man ! It is an oft told tale—I have told it often enough, but I am afraid there is need for repetition—that the one thing we want in scientific study is to escape from the immediately useful. We should seek to understand and search out the secrets of Nature, and patiently allow time to prove their value to man- kind. Another part of the work of the Club I would venture merely to touch upon, and that is the Museum work. The success of the Epping Forest Museum has been most admir- able. This success has been entirely owing to the fact that it was worked on sound lines. The mere putting together of specimens does not constitute a museum. The mere heaping together of curiosities might make an old curiosity shop, but does not con- stitute that which was worthy of the name or office of a museum ; and*I do feel that it is owing entirely, or in a very large measure, to the zeal and skill of our Secretary that the Epping Forest Museum is not only of most valuable assistance to the study of Epping Forest itself, but has also brought the question of museums most favourably to the notice of others, and is an example that will be followed in a good many other cases. With regard to our Central Museum, the whole matter is still sub judice, and I do not wish to speak too much upon it ; but I do hope—knowing the great value of museums to students— that we may be able, when we have settled these difficult questions, which are being most carefully and patiently gone into, to make the collections of the Club, not merely a satisfaction to ourselves as collectors, but of great educational use to our neighbours, and permanently so to our naturalist friends. It is difficult to over-estimate the effects of a really good museum as a means of education. If we only excite the wonder and curiosity of a boy or girl, or of persons who might be thinking themselves learned, but who had never