Something, though little, was done to assist in economic betterment by the building of public works. The lords, both lay and ecclesiastical, resisted many of these projects, notably the building of bridges, since it deprived them of the tolls which they were in the habit of collecting for ferrying goods, animals, and persons across the rivers. Men travelled on horseback, or on a litter, and goods were carried by pack-animals or carts, although the latter could rarely be used because of the bad condition of the roads. Measures to improve the highways were frequently taken, however. The greater part of the revenues devoted to public works was still applied to the building or repair of fortifications. _Aragon, Catalonia, and Valencia_ [Sidenote: Economic factors in the kingdom of Aragon, especially in Catalonia.] The economic history of this region, based on the natural differences of the three principal sections, followed much the same lines as before, but the principal note was the all-round development in Catalonia. Grain in that region was scarce, on which account large quantities were imported from Aragon and from foreign countries, but some other agricultural products, such as rice, grapes, and olives, were cultivated with success. Stock-raising was also a prominent occupation. The most important source of Catalan wealth continued to be in manufacturing, especially in Barcelona. A great variety of cloths and fabrics was made, as also pottery, barrels, rope, glass, and many other articles of practical utility. Aragon was less important in commerce, as in other respects, than the other parts of the realm. Something was done there by royal legislation to favor trade, and enough of it existed to warrant the founding of a _consulado_ in Saragossa (1391) with mercantile jurisdiction. Catalan commerce was so great in volume that it rivalled that of the Italian cities. From the Scandinavian lands in the northwest to the extremes of the Mediterranean, Catalan ships might be seen, and if there were many Italian vessels which visited the ports of Catalonia, so too the Catalans carried their trade to the cities of Italy, where many Catalan consuls resided. Kings, lords, and towns endeavored to build up Catalan industry and commerce, by favorable legislation, by extending the institution of the _consulados_, and by making commercial treaties. Nevertheless, not a few obstacles were also raised, largely as a result of the false economic ideas of the era. Thus, prices were often fixed; a precise order, or sequence, of sale might be required,--for example, in La Bisbal the crop of the bishop had to be sold first; the technical regulation of industries was carried to excess, far beyond the rules established in this respect in the other lands of the peninsula; taxes were numerous in kind, and some were very heavy; and the policy of protection was carried to extremes in favor of some municipalities as against others.