58 THE LIBRARY TABLE. again becoming prevalent, and many men of undoubted knowledge and ex- perience have, in addresses to the British Association and elsewhere, pleaded well for the re-instatement of the Field Naturalist to a prominent place in the file of science workers. No one in his senses would wish to depreciate the valuable training afforded in the laboratory, or to undervalue the immense and far-reaching results of the modern biologist. All we plead for is a more catholic definition of biology, and the recognition of field-study, and above all of the observation of the living plant or animal, its mode of life, and relation to environment, as supplemental to and of equal importance with the use of the microscope and scapel. Professor Miall's works are valuable practical aids to the encouragement of such ideas. "Round the Year" is the more elementary book—its object is to lead people to observe, and to recognise the immense opportunities for pleasant and profitable study afforded by the familiar objects and phenomena of the open country. Professor Miall is no encourager of mere dilettantism. He shows how incumbent it is for the field naturalist to study his subject seriously from all sides if he wishes to appreciate the wonders that are presented in the structure and life-history of the commonest plant or animal—Goethe's words "Man sieht nur was man weiss" are his motto. The young naturalist who works through the year with Mr. Miall's book in hand, using it as a pleasant suggestor of lines of observation, will have gained much real knowledge of Natural History, and above all, will have received no inconsiderable training in that most difficult of all arts—the art of seeing. The Natural History of Aquatic Insects is quite a unique book for the rational entomologist, who is tired of catching and setting out rows upon rows of beetles and butterflies, and ranging them in camphor-scented trays. The author seeks to lead naturalists "to lay aside their technical lists and records of parish distribution, and study the works of Nature with open eyes, seeking above all things to know more of life in its infinitely varied forms." In a dozen or more chapters teeming with suggestions for good practical work, he points the way to a renaissance of field natural history of the school of Swammerdam, Reaumur, Newport and Lubbock. With the advantage of some neighbouring ponds, a few simple aquaria and a good microscope (with ability to use it) the earnest student may readily follow out Professor Miall's '' life-histories '' and thereby gain more real knowledge of entomology than the perusal of a dozen of the ordinary books of the science, or the accumulation of thousands of specimens, would ever afford. The most valuable feature of the work is its suggestiveness.—Professor Miall points out how many interesting problems await solution, and the wide range of experimental observation necessary for their unravelment. Mere study of museum specimens will never do this ; it is by observation of the living insects side by side by the employment of the methods of the practised dissector and micro- scopist, that progress will be made. There are wide fields open for exploration, and how pleasant are the paths ! To use the words of Herbert Spencer equally applicable to the inland as to the marine naturalist "whoever at the sea-side has not had a microscope and an aquarium, has yet to learn what the highest pleasures of the sea-side are." Mr. A. R. Hammond's skilful drawings, taken in most cases from life, add to the value of both books.