Illustrated Treatise on the Maritime Kingdoms, Volume 55

The North Ocean: The Kingdom of Prussia

The [Silesian] district is called Magdeburg original: 墨里斯路 (Molisilu); Wei Yuan uses this transcription for the administrative center of the region. There is also the Erfurt original: 額那斯 (Enasi) district, located within the mountain valleys, which contains twenty forts. The region produces hemp, tobacco, cloth, woolens, lead, copper, iron, arsenic, and salt.

The Province of Saxony original: 都領吉阿部 (Dulingjia bu); though transcribed as "Thuringia," the description and borders match the Prussian Province of Saxony
Its eastern border meets Lusatia original: 魯那底阿 (Lunadia); referring to the region of Lausitz; its southern border meets Weimar original: 威麻 (Weima); its western border meets Hanover original: 阿那洼 (Anawa), likely a variation of Hanover; and its northern border meets Brandenburg.

This region, situated within the tribal lands of Saxony original: 塞循 (Saixun), is the most heavily fortified. Its total area is 9,809 square li Approximately 15,500 square kilometers; Wei Yuan's figures are converted from contemporary European gazetteers, with a population of 1,396,240 people. It governs twenty-three small districts. The capital is Merseburg original: 墨尼麥 (Monimai); the administrative seat of the province at the time, where the streets are wide and trade is highly prosperous.

The Province of Westphalia original: 威塞花里阿部 (Weisaihuajia bu)
Its eastern border meets Hesse original: 希西領俄 (Xixiling'e); likely Hesse-Cassel or the Lippe principalities; its western border meets the Netherlands original: 尼達蘭 (Nidalan); its southern border meets the Rhine original: 臘引 (Layin); and its northern border meets Hanover.

Located between the Netherlands and Hanover, it borders the northern bank of the Lippe River original: 獵比河 (Liebi He). The northern bank consists mostly of sand, while the southern bank is rocky. The mountains are deep and the forests are dense, making the land unsuitable for farming. Its total area is 7,867 square li, with a population of 1,210,007 people.