Strophodus magnus, [587].

Structure of coniferæ, [57].

------------ vegetables, [55].

Studd Hill, [843].

Stutchbury, Mr., researches of, [265], [713].

Stuttgart, Würtemberg, [805].

Stylastritæ, [287].

Sub-Apennines, [503].

Sub-Himalayas. See [Siwalik Hills].

Submerged forests, [70].