tion: Sources of Loss and of Gain to the Blood; the Function of Alimentation; Motion and Locomotion; Sensations and Sensory Organs; the Organ of Sight; the Coalescence of Sensations with one another and with other States of Consciousness; the Nervous System and Innervation; Histology, or the Minute Structure of the Tissues. A Table of Anatomical and Physiological Constants is appended. The lessons are fully illustrated by numerous en gravings. “Pure gold throughout.”—Guardian. Unquestion ably the clearest and most complete elementary treatise on this subject that we possess in any language."-Westminster Review.

Kirchhoff (G.)—RESEARCHES ON THE SOLAR SPEC. TRUM, and the Spectra of the Chemical Elements. By. G. KIRCHHOFF, Professor of Physics in the University of Heidelberg. Second Part. Translated, with the Author's Sanction, from the Transactions of the Berlin Academy for 1862, by HENRY R. Roscoe, B.A., Ph.D., F.R.S., Professor of Chemistry in Owens College, Manchester.

"It is to Kirchhoff we are indebted for by far the best and most accurate observations of these phenomena.”—Edin. Review. "This memoir seems almost indispensable to every Spectrum observer.”—Philosophical Magazine.

Lockyer (J. N.)-ELEMENTARY LESSONS IN ASWith numerous Illustrations. By J. NORMAN LOCKYER, F.R.S. Eighth Thousand. 18mo. 5s. 6d.

TRONOMY.

The author has here aimed to give a connected view of the whole subject, and to supply facts, and ideas founded on the facts, to serve as a basis for subsequent study and discussion. The chapters treat of the Stars and Nebula; the Sun; the Solar System; Apparent Movements of the Heavenly Bodies; the Measurement of Time; Light; the Telescope and Spectroscope; Apparent Places of the Heavenly Bodies; the Real Distances and Dimensions; Universal Gravitation. The most recent Astronomical Discoveries are incorporated. Mr. Lockyer's work supplements that of the Astronomer Royal. "The book is full, clear, sound, and worthy of attention, not only as a popular exposition, but as a scientific Index.'- Athenæum. The most fascinating of elementary books on the Sciences.”– Nonconformist.

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SCIENTIFIC CATALOGUE.

Macmillan (Rev. Hugh).—For other Works by the same

Author, see THEOLOGICAL Catalogue.

HOLIDAYS ON HIGH LANDS; or, Rambles and Incidents in search of Alpine Plants. Crown 8vo. cloth. 6s.

The aim of this book is to impart a general idea of the origin, character, and distribution of those rare and beautiful Alpine plants which occur on the British hills, and which are found almost everywhere on the lofty mountain chains of Europe, Asia, Africa, and America. In the first three chapters the peculiar vegetation of the Highland mountains is fully described; while in the remaining chapters this vegetation is traced to its northern cradle in the mountains of Norway, and to its southern European termination in the Alps of Switzerland. The information the author has to give is conveyed in a setting of personal adventure. "One of the most charming books of its kind ever written."-Literary Churchman. "Mr. M.'s glowing pictures of Scandinavian scenery."—Saturday Review.

FOOT-NOTES FROM THE PAGE OF NATURE. With numerous Illustrations. Fcap. 8vo. 5s.

"Those who have derived pleasure and profit from the study of flowers and ferns-subjects, it is pleasing to find, now everywhere popular -by descending lower into the arcana of the vegetable kingdom, will find a still more interesting and delightful field of research in the objects brought under review in the following pages.”—Preface. "The naturalist and the botanist will delight in this volume, and those who understand little of the scientific parts of the work will linger over the mysterious page of nature here unfolded to their view."-John Bull.

Mansfield (C. B.)-A THEORY OF SALTS. A Treatise on the Constitution of Bipolar (two-membered) Chemical Compounds. By the late CHARLES BLACHFORD MANSFIELD. Crown 8vo. 145.

Mansfield," says the editor, "wrote this book to defend the principle that the fact of voltaic decomposition afforded the true indication, if properly interpreted, of the nature of the saline structure, and of the atomicity of the elements that built it up. No chemist will peruse this book without feeling that he is in the presence of an

original thinker, whose pages are continually suggestive, even though their general argument may not be entirely concurrent in direction with that of modern chemical thought."

Mivart (St. George).-ON THE GENESIS OF species. By ST. GEORGE MIVART, F.R.S. Crown 8vo. Second Edition, to which notes have been added in reference and reply to Darwin's "Descent of Man." With numerous Illustrations. pp. xv. 296. 9s.

The aim of the author is to support the doctrine that the various species have been evolved by ordinary natural laws (for the most part unknown) controlled by the subordinate action of “natural selection," and at the same time to remind some that there is and can be absolutely nothing in physical science which forbids them to regard those natural laws as acting with the Divine concurrence, and in obedience to a creative fiat originally imposed on the primeval cosmos, "in the beginning," by its Creator, its Upholder, and its Lord. Nearly fifty woodcuts illustrate the letter-press, and a complete index makes all references extremely easy. Canon Kingsley, in his address to the "Devonshire Association," says, "Let me recommend earnestly to you, as a specimen of what can be said on the other side, the Genesis of Species,' by Mr. St. George Mivart, F.R.S., a book which I am happy to say has been received elsewhere as it has deserved, and, I trust, will be received so among you." "In no work in the English language has this great controversy been treated at once with the same broad and vigorous grasp of facts, and the same liberal and candid temper.”—Saturday Review.

Nature.-A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. Published every Thursday. Price 4d. Monthly Parts, Is. 4d. and Is. 8d.; Half-yearly Volumes, 10s. 6d. Cases for binding vols. Is. 6d.

"Backed by many of the best names among English philosophers, and by a few equally valuable supporters in America and on the Continent of Europe."-Saturday Review. "This able and well-edited Journal, which posts up the science of the day promptly, and promises to be of signal service to students and savants.”—British Quarterly Review.

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SCIENTIFIC CATALOGUE.

Oliver. Works by DANIEL OLIVER, F.R.S., F.L.S., Professor of Botany in University College, London, and Keeper of the Herbarium and Library of the Royal Gardens, Kew :—

LESSONS IN ELEMENTARY BOTANY. With nearly Two Hundred Illustrations. Twelfth Thousand. 18mo cloth. 4s. 6d. This book is designed to teach the elements of Botany on Professor Henslow's plan of selected Types and by the use of Schedules. The earlier chapters, embracing the elements of Structural and Physiological Botany, introduce us to the methodical study of the Ordinal Types. The concluding chapters are entitled, "How to Dry Plants" and "How to Describe Plants." A valuable Glossary is appended to the volume. In the preparation of this work free use has been made of the manuscript materials of the late Professor Henslow.

FIRST BOOK OF INDIAN BOTANY. With numerous Illustrations. Extra fcap. 8vo. 6s. 6d.

This manual is, in substance, the author's "Lessons in Elementary Botany," adapted for use in India. In preparing it he has had in view the want, often felt, of some handy résumé of Indian Botany, which might be serviceable not only to residents of India, but also to any one about to proceed thither, desirous of getting some preliminary idea of the botany of the country. It contains a wel digested summary of all essential knowledge pertaining to Indian Botany, wrought out in accordance with the best principles of scientific arrangement."-Allen's Indian Mail.

Penrose (F. C.)-ON A METHOD OF PREDICTING BY GRAPHICAL CONSTRUCTION, OCCULTATIONS OF STARS BY THE MOON, AND SOLAR ECLIPSES FOR ANY GIVEN PLACE. Together with more rigorous methods for the Accurate Calculation of Longitude. By F. C. PENROSE, F.R.A.S. With Charts, Tables, etc. 4to. 125. The author believes that if, by a graphic method, the prediction of occultations can be rendered more inviting, as well as more expeditious, than by the method of calculation, it may prove acceptable to the nautical profession as well as to scientific travellers or amateurs. The author has endeavoured to make the whole process as intelligible as possible, so that the beginner, instead of merely having to

follow directions imperfectly understood, may readily comprehend the meaning of each step, and be able to illustrate the practice by the theory. Besides all necessary charts and tables, the work contains a large number of skeleton forms for working out cases in practice.

Roscoe.-Works by HENRY E. ROSCOE, F.R.S., Professor of Chemistry in Owens College, Manchester :

LESSONS IN ELEMENTARY CHEMISTRY, INORGANIC AND ORGANIC. With numerous Illustrations and Chromolitho of the Solar Spectrum, and of the Alkalies and Alkaline Earths. New Edition. Thirty-first Thousand. 18mo. cloth. 4s. 6d.

It has been the endeavour of the author to arrange the most important facts and principles of Modern Chemistry in a plain but concise and scientific form, suited to the present requirements of elementary instruction. For the purpose of facilitating the attainment of exactitude in the knowledge of the subject, a series of exercises and questions upon the lessons have been added. The metric system of weights and measures, and the centigrade thermometric scale, are used throughout this work. The new edition, besides new woodcuts, contains many additions and improvements, and includes the most important of the latest discoveries. "We unhesitatingly pronounce it the best of all our elementary treatises on Chemistry."Medical Times.

SPECTRUM ANALYSIS. Six Lectures, with Appendices, Engravings, Maps, and Chromolithographs. Royal 8vo. 21S.

A Second Edition of these popular Lectures, containing all the most recent discoveries and several additional illustrations. "In six lectures he has given the history of the discovery and set forth the facts relating to the analysis of light in such a way that any reader of ordinary intelligence and information will be able to understand what 'Spectrum Analysis' is, and what are its claims to rank among the most signal triumphs of science."-Nonconformist. "The lectures themselves furnish a most admirable elementary treatise on the subject, whilst by the insertion in appendices to each lecture of extracts from the most important published memoirs, the author has rendered it equally valuable as a text-book for advanced students."-Westminster Review.