iv PREFACE 



in the book, so that a special manual is unnecessary, (g) The 

 index is unusually complete. 



The treatment of human biology emphasizes hygiene and 

 sanitation and contains graphic diagrams illustrating the sec- 

 tions on health and disease. This treatment will be found 

 especially practical. The treatment of alcohol and narcotics 

 is adequate, but sane. 



For teachers in New York State a feature of the book is its 

 close relation to the Regents' Syllabus, which it covers exactly. 

 It is equally suited to courses laid down for various other 

 states, notably Massachusetts and Ohio. 



The book has a number of appendices, one of which has 

 to do with bird study. Another contains the sanitary code of 

 the State of New York. 



The work is so arranged that the course, though simple, is 

 thoroughly scientific. Science is organized knowledge, and 

 the simple student reports in the form of tables lead the pupil 

 to make a correct and logical classification of his facts, thus 

 laying the foundation for scientific study. 



W. M. S. 

 I. L. R. 

 G. A. B. 

 July, 1916. 



