158 MANUAI< OF NATURE STUDY. 



EIGHTH GRADE. 



Physiology. 



If the work outlined in Physiology in the lower 

 grades has been properly done the pupil will have, 

 when he enters the eighth grade, a fairly good 

 knowledge of the structure of the body, of the 

 various processes of digestion, circulation, etc., 

 and will understand the more common demands 

 and laws of health. In the eighth grade the 

 authorized text is to be in the hands of the pupils, 

 and the work is to receive attention and energy 

 equal with that given to other substantial branches 

 of the course. 



The work will, of course, treat in the main of 

 subject matter gone over in the earlier grades, but 

 the treatment will be more comprehensive and 

 technical than has been possible up to this point. 

 The consideration of individual structure and 

 function will now give way to the consideration of 

 relation and interdependence. At every place pos- 

 sible the pupil will be led to see the adaptation of 

 structure to function and of both to hygienic de- 

 mands and laws. As far as possible the laboratory 

 method should be used. Actual material should 

 be brought before the class whenever it can be 

 used to advantage in explaining the structure or 



