Yousan kairyouhou

Yousan kairyouhou

Yousan kairyouhou

Yousan kairyouhou : shinri jikken ichimei housan no baishaku

Yousan kairyousaku

Sanji shiiku kairyouhou

Yousan kairyou hitsukou youkou

Jikken kaiko no hinshu kairyouhou

Yousan shiyouhou

Inasaku kairyouhou

Inasaku kairyouhou

Chagyou kairyouhou

Yousan hourei

Yousan hourei

Keizai yousan zengaiku no kairyou

Yousan jukutatsuhou

養蚕改良法

Kairyou yousanhou

Jikken kanken kairyouhou

Shounou seizou kairyouhou

Minrin kairyouhou kouwa

Taiseki hiryou kairyouhou

Essa suisan kairyouhou

Taiseki hiryou kairyouhou

Kanchi inasaku kairyouhou