ON THE

NATURE

OF

MANAn Essay on Primitive Philosophy

by DAGOBERT 0. RUNES

ABOUT THE AUTHOR:Dagobert D. Runes, received his Doc-

tor of Philosophy degree froin the Univer-sity of Vienna. He Is author and edlitorof nuimnerous books and other publ cat ions,aimmong them: Dictionar-y of Philo.oshyMand Treasury of Philosophy. Amiiong theniany scientific journals he has editedare: Joutrnal of Aesthetic.s, PhilosophicAbstracts, The Modern Thinker. lIe Is

the formiier director of the Institute forAdvanced Education.

THIS new work, from the pen of the well-known philosopher, is offered as an attempt

to define the borderlines of human thinking and social attitude. Dr. Runes, in his search

for real verities and true humanity, takes the reader on an arduous voyage through the

depths of the mind.

RANDOM OPINIONS OF "LETTERS TO MY SON",a previous book by Dr. Runes.

"Letters to my Son has given me great delight.We both travel on the same path, to bring to man-kind a deeply ethical, deeply spiritual consciousness,with the purpose of leading the people back fromthe mentality of indifference in which they are liv-ing, to a new and higher manner of thinking."

-Albert Schweitzer

"A brilliant, succinct, forward, intelligent pro-nouncement and treatise, written with the quietnessborn of inner maturity and enhanced with philo-sophic understanding."

-The Psychiatric Quarterly

"It is a lovable book, written by a well-knownauthor and editor of numerous works. Fresh andoriginal, the letters are most readable. The wordsof the author seem to have come out of the depth ofthe truth.... It is the philosophy of life which hehas unfolded for the readers."

-Indian Librarian

"Well written, and the expressed opinions areclosely akin to those I hold."

-Albert Einstein

"The originality and vitality of this book cannotbe grasped through random quotations of the inter-pretation of a review, but rather through the carefulreading of the book itself. In form the 'letters' arepoetic and contain something of the spirit of theprophetic books of the Bible. . . . One cannotread the book without sensing the author's feelingof at-homeness in the universe and his appreciationof the world of nature, the beauty and wisdom ofthe order and intricacy of the life processes aboutus and within us."

-Saturday Review

r----- --___I PHILOSOPHICAL LIBRARY, Publishers1 15 East 40th St., Desk Z, New York 16, N. Y.

I Please send me -e-- copies of "On the NatureI of Man" by Dagobert D. Runes, Ph.D. at $3.00 per copy.I I enclose remittance to expedite shipment.I Name ----

I Address-3D 1Ii

11IIIIIIIII

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127930 DECEMBER 1955

30 DECEMBER 1955

Ready January 1956:

|The Dynamics of

Living ProtoplasmBy L. V. HEILBRUNNUniversity of Pennsylvania327 pp., illus., about $6.50

THE LIVING CELL IS A COLLOIDAL ENGINE. This book shows howthe engine works, and it offers explanations of such phenom-ena as muscular contraction, excitation, and cell division interms of our knowledge of the colloid chemistry of protoplasm.

Physiologists, pharmacologists, pathologists, and cliniciansinterested in basic protoplasmic mechanisms will find TheDynamics of Living Protoplasm a useful volume. It may alsobe read profitably by advanced students in biology either atthe undergraduate or graduate level.CONTENTS: Introduction, Protoplasmic Viscos-ity, Protoplasmic Gels, The Electrochemistry ofthe Cell, The Surface Precipitation Reaction, Pro-toplasmic Clotting, Muscular Contraction, TheExcitation of Nerve, Conduction and Transmis-sion, Cell Division, The Suppression of Cell Divi-sion, Stimulation and Anesthesia, The ColloidalTheory of Stimulation and Anesthesia, CellularHomeostasis, Conclusion, Author and SubjectIndexes.

Blood Group SubstancesTheir Chemistry and Immunochemistry

By ELVIN A. KABATColumbia University

330 pp., illus., about $8.00IN THE AUTHOR'S own words, "the present volume is an attemptto bring together and to synthesize the existing information onthe blood group substances as seen from the viewpoint ofquantitative immunochemistry."The preparation of this book was stimulated by the extra-

ordinarily increased interest in and knowledge of blood groupswitnessed during recent years. Immunochemistry, immunology,carbohydrate and protein chemistry, physical and thermody-namic chemistry, genetics, as well as clinical medicine, allcontribute to this survey of blood group substances, and,in turn, investigations in these fields are benefiting fromthe newer knowledge of blood typing.CONTENTS: Introduction-The Human BloodGroup Factors, Methods and Reagents Used in

Testing for Blood Group Antibodies and Antigens,Sources of Blood Group Substances, Purification ofBlood Group Substances, Chemical Compositionand Properties of the Blood Group A, B, 0 (H)and Lea Preparations, Chemical and Immuno-chemical Characterization of the Blood GroupSubstances-Evidence of Purity, ImmunochemicalSimilarities and Differences Among Blood GroupSubstances from Various Species, Some Features ofthe Structure of the Blood Group A, B, 0 (H) andLea Substances, Antibodies to Blood Group Sub-stances and Their Biological Effects, Biological Ef-fects and Uses of Blood Group Substances-Ma-terials of Similar Chemical Composition, Authorand Subject Indexes.

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