GENERAL REMARKS REGARDING ELEMENTS. 63 



88. In which cases are the syllables mono-, di-, tri-, tetra-, and penta- 

 used in chemical nomenclature? 



89. What use is made of the syllables ous and ic, ite and ate, in dis- 

 tinguishing compounds from each other ? 



90. Which five points should be specially considered in studying the 

 nature of elements or compounds ? 





