Another danger to which the student of science is exposed is that of paying little or no attention to any department of science save that of which he is making a specialty. It is therefore of great importance that the courses of study laid out in science colleges should at the outset be sufficiently broad to afford a thorough grounding in the leading principles of all the sciences and in the application of scientific method to every field of inquiry. Only in this way can a true sense of the power and universality of science as a method of thought and an engine of the human mind be obtained. Why is it that we are often so little impressed with the intellectual character of this or that noted specialist? The reason, we take it, is that his mind lacks breadth; he knows his own field of observation, but seems to have little sense or appreciation of what lies beyond it. It may have been some one of this type who suggested to Wordsworth his idea of an "ever-dwindling soul"; certain it is that a man may, by the too exclusive pursuit of a narrow line of thought and inquiry, fatally cramp his mind and dim his spiritual vision. The foundation of all science is observation, and Sir Archibald rightly dwells upon the supreme importance of cultivating and developing the observing faculty to the utmost extent. He states that a man may possess a colossal intellect while his faculty of observation may be of the feeblest kind, and gives as an example a very eminent mathematician, lately deceased, who used to make the most ludicrous mistakes as to time and place. Upon this point we feel like venturing a little dissent. We doubt whether there ever was a colossal intellect apart from a considerable development of the power of observation; and that a great mathematician should take very little notice of what was going on in the world about him would only show that his powers of observation were otherwise engaged. Take him in his own field, and what a multitude of things he would observe which a man of inferior intellect, occupied with the same studies, would overlook! It would be a somewhat rash thing to undertake to cure an Archimedes or a Newton of that absent-mindedness which, to the world at large, looks like a deficiency of observation. In such cases as these the mind that is absent here is present elsewhere; and what it is doing there the world will in due time find out. It is impossible, we hold, for any one man to be observant in all directions; if he is, it is certain he will not have a colossal intellect. Still, the truth which should be borne in upon every student's mind is that if he would make independent progress he must be an independent observer. He must take in once for all the truth that the materials needed for scientific construction lie afield, and that he must keep his eyes open in order to see and distinguish them. At every moment the man of science may say, "There are more things in heaven and earth than are dreamt of" in