夢溪筆談, Volume 11-16

A compilation of practical essays and observations addressing administration, engineering, and natural phenomena, with detailed discussions of taxation and revenue systems for commodities, grain transport and military logistics, canal and river works, fortification design, legal procedure, and material technologies. The pieces combine case studies and procedural recommendations with inventive problem-solving, describing measurement methods, fiscal calculations, water-control structures, transport efficiencies, defensive architecture, and small mechanical contrivances, while recording bureaucratic practices and illustrative anecdotes to show how technical knowledge and administrative reform can improve governance and resource management.