GRASSES OP IOWA. 



163 



charum. Cane sugar has a chemical composition of Cj, H,j 

 O^j. Its medical use when in solution is almost exclusively 

 lenitive, but in powder it is a stimulant, and is employed to 

 diminish dryness of the mouth and fauces, to stop irritation and 

 mitigate cough. It is said also to have a diuretic effect. Used 

 in a moderate quantity it promotes digestion and stops nervous 

 excitment. It is said also to be a very efficient remedy for 

 apathas of the mouth, and in granular eyelids. It is also said 



/J 





Fig. 74. Amylum. Various forms of starches from grass endosperm: 1, sorghum^ 

 2, rice; 3, wheat; 4, maize; 5, Italian millet; G, Panicum mUiaceum; 7, EragroslU ahyssi- 

 nica; 8, wh -at more magnified than 3; 9, barnyard grass ;iO, Panicum aanguinale; 11, rye; 

 i2, oai 8; i5, barley; 74, Jerusalem corn;lo, buckwheat; 16, manna grass; 17, Eleusine 

 coracanna. 



