TEACHING OF PHYSIOLOGY AND PUBLIC HEALTH. 45 



RULES. Spitting on the floor of any school building is absolutely for- 

 bidden. Teachers and all school authorities are directed to enforce this rule. 



RULE 9. School Commissioners and School Trustees in cities and 

 towns, and Township Trustees, shall not employ teachers who are afflicted 

 with pulmonary tuberculosis or any constitutional contagious disease ; neither 

 shall they permit pupils so affected to attend school ; nor shall they permit 

 filthy or unclean pupils to attend the schools under their control. 



