Price : American Port Towns 145 channels oftrade. Thus, in the 1740*5. English exports to New Eng- land declined while those to all the other colonies increased. Table II ENGLISH EXPORTS TO NORTH AMERICA, 1737-1749 To New England To All Colonies (in thousands of pounds sterling) 1737-1739 179 P-a. 583 P-a. 1740-1745 149 690 1740-1749 165 729 Though Boston's shipping activity resumed its growth in the gen- eration 1755-1775, it was almost inevitable that Boston would lose its place as the leading American port, if only because wheat and flour passed fish as the leading export of the northern and mid- dle colonies both generally and to southern Europe. In this, North American production was reacting to the expansion of population in Europe and the higher prices for cereals that characterized the last third of the eighteenth century. Thus, by 1765-1772, Phila- delphia, which had long since passed Boston in population, also passed it marginally in shipping volume. The Philadelphia lead was most pronounced in the trade to the West Indies and southern Eu- rope, both of which took its flour, but Boston still led in the direct trade with Britain, suggesting that there was still life left in its old trade of reexporting goods from Britain to the other colonies. Boston's problems were not confined to the rise of independent general entrepots in New York and Fhiladelphia which could d^s- jjense with its services as intermediary. Within Massachusetts, its position in the simpler trades was also challenged by lelsTr whiclTevciItnaily^eenied able to operate on a competitive scale at lower costs. The old bases of the area's ocean-borne commerce,. fishing and shipbuilding, had never been Boston's monopoly. From the earliest days of settlement the lesser ports to the north and south of Boston had participated in these activities, though Boston mar- keted much of their fish and commissioned or bought much of the