THE time is past when a man can expect to make any real contribution to knowledge by spreading his observations over the whole vast range of microscopic objects. In these days, in which the output of research on every subject is enormous, and is increasing rather than diminishing, a man is more likely to make progress and do useful work by taking up a special line and sticking to it. Speaking for those who work with, rather than at, the microscope, I would advise everyone who wishes his work to be fruitful in results to have a hobby of his own. In making this suggestion, I do not mean that we are all to become narrow specialists, interested in nothing but our own particular subject. Specialisation in work and in research does not necessarily mean specialisation in knowledge or in interests. The great value of such a club as ours is that by bringing together people occupied in different branches of work it enables one man to know what another man is achieving in a different line, thereby at once widening his outlook and stimulating him in his own work by producing a healthy spirit of emulation.