Chiri shouseki hiryou kakaku ron

Chiri shouseki hiryou hanbaiten

Chiri shouseki

Chiri shouseki sonota koyashi no yarikata

Tousei kakaku ron

Hiryou seizou ron

Tsuuzoku hiryou ron

Tsuuzoku hiryou ron

Tsuuzoku hiryou ron

Nousanbutsu kakaku ron

Tsuuzoku hiryou dojou ron

Hiryou youron : fu tochi kairyou ron

Hiryou shinron

Kachi kakaku oyobi rijun

Sehiron to hiryou no kagaku

智利硝石輸入

智利硝石買付

智利硝石の衰退 : 強敵人造肥料のため

Rouchin kakaku oyobi rijun

Shokuryouhin koutei kakaku benran

米国で窒素肥料計画 : 智利硝石組合解散

智利硝石山競売

Kakaku suijun no kihon riron

肥料価格騰貴 : [肥料価格騰貴(其一)]

Zenkoku nenryou koutei kakaku souran