146 ON THE EDUCATION OF 
The numbers may be as easily taught as any other adjec- 
tives, and on exacily the same principles. Each mark is, in- 
deed, significant, which is not usually the case with the letters 
of which words consist. But this circumstance cannot produce 
any embarrassment. When he knows the meaning of the 
werd cup, that of 2 cups and 3 cups is easily conveyed ; 
and the variation of the examples will soon suggest the gene- 
rality which is to be attached to the numerical sign. The mean- 
ing of the units and their combinations may be taught by 
means of small bodies, such as pins, marbles, or pebbles. 
The regularity of the decimal numeration, and the power of 
expression obtained by the combination of the ciphers, are 
not unlikely to be contemplated by him with considerable re- 
lish.. Information in these particulars may at first be conveyed 
to him by means of pins stuck in a flat cushion, or pegs 
stuck in holes in a board, in such an order as the following : 
] ‘ 
byuages 
&e. 
10 Se eee ede cl he te Sin abo 
Bs As akoptvngiontine ad, weasel | 
&e. f 
20. 31-4 iain nh Pasi 28h 
« &e 
100 e ° . . . ° . . . . 
The 
