INTRODUCTION 

 TO SCIENCE 



BY 



J. ARTHUR THOMSON 



REGIUS PROFESSOR OF NATURAL HISTORY, ABERDEEN 



UNIVERSITY 



AUTHOR OF " DARWINISM AND HUMAN LIFE ; " " HEREDITY; " 

 " THE BIOLOGY OF THE SEASONS J " " HERBERT SPENCER ; " 



"THE SCIENCE OF LIFE ; " "THE PROGRESS OF SCIENCE 

 IN THE CENTURY;" "THE STUDY OF ANIMAL LIFE;" 



" OUTLINES OF ZOOLOGY ; " " THE NATURAL 

 HISTORY OF THE YEAR*' 



Joint author of "TAe Evolution of Sex " and "Evolution " 



NEW YORK 



HENRY HOLT AND COMPANY 



LONDON 

 THORNTON BUTTERWORTH LTD. 



