vi Preface 



Technical terms are made clear to the pupil as they are intro- 

 duced. They are explained naturally and simply in the text. In 

 addition, clear, direct definitions of important terms are given in 

 an unusually complete glossary. The possibilities of this glossary 

 are not limited to reference use. It is so extensive that it offers 

 unusual opportunities for review and drill. 



General Science offers exceptional possibilities in the way of 

 arousing interest, of awakening intelligent questioning, of testing 

 aptitudes, and of placing a pupil in right relations to the surround- 

 ings in which he lives. It has a further appeal to the pupil who 

 still dwells in the hero-worship period. The Fifth Year Book 

 says: "The discoveries of great scientists, illustrations of their 

 method of work, their devotion to the search for truth, their sacri- 

 fices and triumphs all these bring vividly to the pupil apprecia- 

 tion of what the development of science has cost, and an under- 

 standing of the scientific attitude of mind with a desire to make 

 it his own." There is something in general science for everyone 

 no matter what his likings or abilities. 



Science books must be constantly undergoing change, as the 

 student may learn by following the scientific writings from year 

 to year. Scientists are constantly making new advances which 

 affect the comfort of peoples everywhere. The last chapter of 

 this book records some of the latest discoveries. The pupil should 

 find unusual interest in this final chapter. 



OUR SURROUNDINGS seeks to draw from the wealth of scien- 

 tific material that which is most worth while for all; and to 

 present it in various ways with a simplicity and clarity of lan- 

 guage and illustration that will enable each student to make it his 

 own, thereby helping him to rind in it many points of real inspira- 

 tion. It aims to make each student healthier, happier, more inter- 

 ested in the things about him and better fitted to adjust himself 

 to the world in which he lives. 



THE AUTHORS. 



