"adjacently north of Soron along the Hahai river in yellowish gray clayslate and fine micaceous sandstone"; "Soron ... [details]
"At Tiaowetsu in the Tatung or Daido [= Datong] Coal-field in the Chinpei Region, Mengchian (or Sino-Mongolian ... [details]
"adjacently north of Soron along the Hahai river in [...] fine micaceous sandstone"; "Soron [= So’on?] is a small ... [details]
"adjacently north of Soron along the Hahai river"; "Soron [= So’on?] is a small town in the middle part of the ... [details]
"adjacently north of Soron along the Hahai river in [...] fine micaceous sandstone"; "Soron [= So’on?] is a small ... [details]
"adjacently north of Soron along the Hahai river in yellowish gray clayslate"; "Soron [= So’on?] is a small town ... [details]