Yet for all this, something remains to be said. A modern tourist often finds himself in the position of drawing his income from a locality where money is cheaper or dearer than in the districts where he is making his payments. Now, three hundred years ago, he would have met with these fluctuations more frequently and more suddenly than would be the case to-day; and when met with, they would often have been more violent. In so far as this was the case, so far is the relative cost affected. The causes of these fluctuations may be divided into (1) local custom, (2) insufficient linking-up of supply and demand. Hungary may be taken as an example of the latter, Germany of the former, cause; Poland and Spain of districts where social and economic forces jib at separate classification. In Hungary and the districts southeast of it the most seasoned traveller never failed to be astonished at the ideal natural conditions; "wheat," as Sir Thomas Browne's son said of Transylvania in particular a little later, "had no value in relation to the subsistence of a human being." There was no outlet for its products; the continual state of war kept commerce paralysed; Vienna had little need of it, Constantinople none at all; what the fertility of the soil produced so abundantly was thus available for local consumption only. Especially was this the case with products that needed no human tending; the man who ate a whole penn'orth of fish risked bursting. In Germany prices ruled low, yet so excessive was the drunkenness, and so general, that it was a moral impossibility to live cheaply without cutting one's self off from human society. Supper over, for instance, the "schlafftrinke" was set on the table, and whoever touched a drop of it had, by custom, to pay an even share with those who drank till morning. The Spanish diet, which was such a trial to the inside if the stranger did conform to it, was equally a trial to his pocket if he did not. One tried both ways on one day in 1670.[138] At noon he shared the landlord's dinner, paying a real [2s. 6d.] for vegetables, dried fish, fruit; but when in the evening he was one of six who dined on four fowls and neck of mutton, his bill came to the equivalent of £1 5s. not including wine. Poland, on the contrary, being the granary of Europe and exporting much else besides grain, rich in serf labour, and with its retail trade in the hands of denationalised aliens who were well under control, could afford to import plenty of luxuries and enjoyed abundance of necessaries: a goose or a pig for the equivalent of 1s. 6d., a loin of mutton for 1s.—such were prices in Poland.