21 MAY 1887, Page 24

Through a Microscope. By S. Wells, and others. (Interstate Pub-

lishing Company, Chicago.)—This is a useful little book, well calcu- lated to give learners an interest in natural science, and so enable them to employ with profit many hours that might otherwise be dawdled away. It is surprising how vast a quantity of animalcules and minute vegetable objects may be seen with a simple Codrington lens. Those who would find out for themselves will have in this little volume an excellent guide.