MANXJAL Olf NATORfi SfUDY. 103 



Question: When the solvent juices of the stom- 

 ach are acting npon the solid food just swallowed, 

 what would be the effect of a large drink of water, 

 or any other drink? These solvent juices act best 

 when the temperature of the stomach is about as 

 warm as blood. Then what effect would a glass of 

 ice water or a dish of ice cream have upon digestion 

 if taken just after or during a meal? 



Review the organs of digestion together with the 

 function of each, and develop some hygienic laws 

 relative to best digestion and consequent good 

 health. A lesson or two on the effect of alcohol 

 upon the stomach and its juices, would be alto- 

 gether proper with this subject of digestion. 



A general discussion of "stomach troubles" such 

 as dyspepsia, may be deferred to the eighth grade. 



3. Circulation, a. Organs of. b. Functions of 

 each organ, c. Favorable and unfavorable condi- 

 tions. 



We stated a while ago that the dissolved food 

 passed through the thoracic duct to veins, thence 

 to the heart, and from that organ to the general 

 circulation. Just at this point a good beef heart 

 from a slaughter house should be provided and 

 the teacher should proceed to dissect the same in 

 the presence of the pupils, showing the right and 

 left auricles, right and left ventricles, valves, 



