Arithmetic is the art or science of computing bj numbers. It is national, political, military, and commercial. It is of the highest importance to the community ; because it pre-eminently teaches us to take care of Number I. Our ministers succeed according to their knowledge of the science of numbers. Witness the skilful management of majorities of the lower house. He who understands the true art of Addition, Subtraction, Multiplication^ and Division, as here laid down, will not be considered a mere cipher in tlie world; but will, in all probability, make a considerable /^wre ; and in the figurative words of Horace, be "Dives agris dives positis in foenore nummis." Let us, therefore, under the guidance and protection of that god of honest men, the light-heeled and light-fingered Mercury, be diligent so to add to our store by subtracting from the stores of others, that we may add to our importance. Let us so multiply our resources, by encouraging dimsion among our contemporaries, that we may see their reduction in the perfection of our own practice.