[Sig.: "By the same" (i.e., "Mr. Smith"); second in a five-part series on the chemical and organic composition of soil, the last three parts of which are signed "E.S.J.," Eaglesfield Smith's habitual signature]
」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」＜第２章　物質の構成粒子＞（教p19-）