OUR PLACE AMONG INFINITIES. A Series of Essays contrasting our Little Abode in Space and Time with the Infinities around us. To which are added Essays on the Jewish Sabbath and Astrology. By Richard Anthony Proctor. 12mo. Cloth, $1.75.

PHYSICAL EXPRESSION: Its Modes and Principles. By Francis Warner, M. D., Assistant Physician, and Lecturer on Botany, to the London Hospital, etc. With 51 Illustrations. 12mo. Cloth, $1.75.

“In the term ‘Physical Expression,’ Dr. Warner included all those changes of form and feature occurring in the body which may be interpreted as evidences of mental action. At first thought it would seem that facial expression is the most important of these outward signs of inner processes; but a little observation will convince one that the posture assumed by the body—the poise of the head and the position of the hands—as well as the many alternations of color and of general nutrition, are just as striking evidences of the course of thought. The subject thus developed by the author becomes quite extensive, and is exceedingly interesting. The work is fully up to the standard maintained in ‘The International Scientific Series.’”—Science.

“Among those, besides physicians, dentists, and oculists, to whom Dr. Warner’s book will be of benefit are actors and artists. The art of gesticulation and of postures is dealt with clearly from the scientific student’s point of view. In the chapters concerning expression in the head, expression in the face, expression in the eyes, and in that on art criticism, the reader may find many new suggestions.”—Philadelphia Press.

COMMON SENSE OF THE EXACT SCIENCES. By the late William Kingdon Clifford. With 100 Figures. 12mo. Cloth, $1.50.

“This is one of the volumes of ‘The International Scientific Series,’ and was originally planned by Mr. Clifford; but upon his death in 1879 the revision and completion of the work were intrusted to Mr. C. R. Rowe. He also died before accomplishing his purpose, and the book had to be finished by a third person. It is divided into five chapters, treating number, space, quantity, position, and motion, respectively. Each of these chapters is subdivided into sections, explaining in detail the principles underlying each. The whole volume is written in a masterful, scholarly manner, and the theories are illustrated by one hundred carefully prepared figures. To teachers especially is this volume valuable; and it is worthy of the most careful study.”—New York School Journal.

JELLY-FISH, STAR-FISH, AND SEA-URCHINS. Being a Research on Primitive Nervous Systems. By G. J. Romanes, F. R. S., author of “Mental Evolution in Animals,” etc. 12mo. Cloth, $1.75.

“A profound research into the laws of primitive nervous systems conducted by one of the ablest English investigators. Mr. Romanes set up a tent on the beach and examined his beautiful pets for six summers in succession. Such patient and loving work has borne its fruits in a monograph which leaves nothing to be said about jelly-fish, star-fish, and sea-urchins. Every one who has studied the lowest forms of life on the sea-shore admires these objects. But few have any idea of the exquisite delicacy of their structure and their nice adaptation to their place in nature. Mr. Romanes brings out the subtile beauties of the rudimentary organisms, and shows the resemblances they bear to the higher types of creation. His explanations are made more clear by a large number of illustrations. While the book is well adapted for popular reading, it is of special value to working physiologists.”—New York Journal of Commerce.

“A most admirable treatise on primitive nervous systems. The subject-matter is full of original investigations and experiments upon the animals mentioned as types of the lowest nervous developments.”—Boston Commercial Bulletin.

New York: D. APPLETON & CO., 1, 3, & 5 Bond Street.