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somewhat changed their positions, and the semi- 

 circle which they formed at the fifth year, now is 

 hardly so perfect, though still well marked. The 

 above description will be the better understood by 

 reference to the coloured engraving, which has been 

 compared with the mouths of numerous animals, 

 viz.. Skeleton Sorella, and a brown horse, the pro- 

 perty of Mr. T. Brown, &c., &c. The reader, 

 however, will at once recognise the general truth 

 of the drawing, the purpose of which the ac- 

 companying wood-cut will serve to explain. The 

 alteration in the semi-circular arrangement will be 

 better perceived by contrasting the present diagram 

 with the one which preceded it, and though the 

 change may not seem very great, nevertheless, suf- 

 ficient is indicated to instruct the eye accustomed 

 to observe it. The corner teeth have now acquired 

 a degree of surface which will fairly represent a 

 table, though it is still imperfect. The more darkly 

 shaded portion of the separated table denotes the 

 part which has yet received no attrition, but not- 

 withstanding it is readily discerned that the nipper 

 has come into active use. 



