INSTRUCTION.— LANGUAGE. 79 



INSTRUCTION. 



Didac'tics, Paideu'tics (Gr. Jiilasko, 2>f"'^e?nir», I teach). — 



The art or science of teaching. 

 Catechet'ics. — The .science or habit of instructing in questions 



and answers. 

 Curriculum (Lat. curro, I run). — A specified fixed course of 



study, as in a university. 



LANGUAGE. 



Chirorogy (Gr. cheir, the hand, and logos, a discourse). — 

 The art of communicating thoughts hy signs made with 

 the hands and fingers ; a substitute i'or language much 

 used by the deaf and dumb. 



Cryptol'ogy (Gr. krupto, I conceal, and logos, a discourse). — 

 Secret or enigmatical langnage. 



Dactylol'ogy (Gr. daktulos, a finger, and logos, a discourse). — 

 The art of conversing, or communicating ideas, by spelling 

 words with the fingers, as practised by the deaf and dumb. 



Dactylon'omy (Gr. daktulos, and nomas, law, distribution). — 

 The art of numbering on or counting hy the fingers. 



Di'alect. — The form or idiom of a language peculiar to a 

 province or any particular part of a country. 



El'oqueiice. — The art of clothing the thoughts in expressions 

 the most suited to produce conviction or persuasion. 



Glossol'ogy, or Linguis'tics (Gr. glossa, a tongue, and logos, 

 a discourse, and Lat. lingua, a tongue). — The science which 

 investigates the agreement and the differences of the va- 

 rious languages written or spoken by mankind. 



Grammar. — See Grammar. 



Ideol'ogy. — The science of the modification of language hy 

 grammatical forms, according to the various points of 

 view from which men contemplate the ideas which words 

 are meant to express. 



Lexicol'ogy (Gr. lexikon, a dictionary, and logos, a dis- 

 course). — The science of words; that branch of learning 

 which treats of the proper signification and just application 

 of words. 



Lexig'raphy (Gr. lexis, diction, and grapho, I describe). — 

 Tlie art or practice of defining xoords. 



