512 INDUSTRIAL INSTITUTIONS. 



cautiously managed lest, if an attempt be made forthwith 

 to bind him, he may go off in a huff; and, meanwhile pres 

 ents are given and received: there being in this way curi 

 ously shown the broken traces of the aboriginal form of ex 

 change. Even among ourselves we may see both this sur 

 vival of presents, and this love of indefiniteness, in trading 

 of the lower kinds in the &quot; baker s dozen,&quot; in &quot; heaped- 

 up &quot; measures, in the &quot; one in for luck.&quot; And the contrast 

 between such transactions and those of a bank, where ac 

 counts are balanced to a penny, shows the difference be 

 tween undeveloped contract and contract in its developed 

 stages. 



So that while, in the course of social progress from 

 involuntary cooperation to voluntary cooperation, free la 

 bour and contract develop together, each making the other 

 possible, the development of each also depends on collateral 

 conditions. Neither can advance without the other, and 

 neither can advance without various other advances. There 

 is not only a mutual dependence of parts in the social organ 

 ism but also a mutual dependence of influences. 



