===============+============+============+============+============ _District._ | _1849._ | _1864._ | _1849._ | _1858._ ---------------+------------+------------+------------+------------ | _Thalers._ | _Population_ | | _per square mile_ Königsberg, | 0.73 | 1.16 | 2076 | 2298 Gumbinnen, | 0.59 | 0.76 | 2059 | 2249 Danzig, | 1.02 | 1.51 | 2656 | 2926 Marienwerder, | 0.63 | 1.06 | 1944 | 2135 Posen, | 0.69 | 1.07 | 2789 | 2857 Bromberg, | 0.69 | 1.10 | 2116 | 2322 Stettin, | 1.07 | 1.73 | 2355 | 2614 Cöslin, | 0.83 | 1.30 | 1735 | 1940 Stralsund, | 0.95 | 1.50 | 2347 | 2549 Breslau, | 1.19 | 1.45 | 4733 | 5034 Liegnitz, | 1.17 | 1.75 | 3676 | 3763 Oppeln, | 0.86 | 1.20 | 3973 | 4433 Potsdam, | 1.08 | 1.59 | 3317 | 3640 Frankfort, | 1.29 | 2.00 | 2446 | 2660 Magdeburg, | 2.31 | 2.98 | 3290 | 3508 Werseburg, | 2.35 | 3.03 | 3934 | 4270 Erfurt, | 2.04 | 2.55 | 5621 | 5735 Münster, | .... | 2.03 | 3192 | 3299 Minden, | 2.48 | 2.62 | 4841 | 4808 ===============+============+============+============+============ Compare the review of rents in the states of the Zollverein, in _v. Viehbahn_, Statistik, II, 979. It is difficult to compare different countries with one another in this respect, because it is seldom certain whether the word rent means exactly the same thing in them. Besides, it should not be overlooked, how difficult it is to ascertain what rent, in the strict sense of the term, as used by _Ricardo_, is.] [Footnote 156-3: Moreover, the rise of rents, in so far as it depends on the greater cost of transportation to a growing market, becomes progressively slower. The concentric circles about that point increase in a greater ratio than the radii.]