230 ETHNOLOGY. 



9. Radical mine, quarry. — As iu the case of palafittes, tlie radical 

 mine or quarry needs no derivatives. Indeed, it seems to be necessary 

 to justify its use at all. This symbol may be very handy iu prehistoric 

 charts to indicate the source whence materials, such as silex, sand- 

 stone, amber, jade, and other minerals and rocks are obtained. For 

 example, a dolmen is constructed of rocks not to be found iu its imme- 

 diate locality ; the symbol mine is placed at the nearest point where the 

 materials iu question are to be fouud, and a line is drawn from this 

 spot to the dolmen, to show the connection of the two. 



§ 4. Completnentary symbols. 



The complementary symbols are simple signs, which, in combination 

 with the preceding, render archoeological identification as complete as 

 possible. In the execution of the chart, they play a part analogous to 

 the accents and punctuation-marks in writing. These complementaries 

 are grouped iu three categories: the first relates to the state of preser- 

 vation iu which the monuments are found; the second to the number 

 of ruins, &c.; the third relates to their age. 



First category — The state of the monuments. — This category embraces 

 four symbols. The circle under a symbol indicates that the site has 

 been explored. The oblique line crossing the symbol designates a dilap- 

 idated monument, menhirs tumbling over, &c. The double-diagonal 

 crossing upon the symbol indicates the site of monuments entirely iu 

 ruius or destroyed. Finally, a short oblique line on the right side of 

 the symbol points out false identifications, wrong references, &c. 



Cavern. 



xJ. J^ J3. jL Artificial souterrain. 



