| Some Undescribed Ichneumondiae & Braconidae Reared from Ceylonese Lepidoptera | Cameron | Spolia Zeylanica | 1909 | VI | XXI | 40 - 43 | General |
| Some Unknown Beauty Spots of Ceylon | Hettirachchi | Times of Ceylon Annual | 1972 | N/A | N/A | N/A | General |
| Some Unrecognised Aesopizing Jatakas | Peris | Samskrti | 1984 | 18 | 2 | 21 - 36 | Religion |
| Some Wild Flowers of Ceylon | Senaratna | Ceylon Today | 1954 | 3 | 10 | 17 - 21 | General |
| Some Wild Life Memories | Tekie | Loris | 1978 | XIV | 5 | 280 - 281, 311 | General |
| Songs & Habits of Ceylon Cicadas, with a Description of Two New Species, The | Pringle | Spolia Zeylanica | 1955 | 27 | 2 | 229 - 238 | General |
| Sorcery, Premeditated Murder & the Canalization of Aggression in Sri Lanka | Obeyesekere | Ethnology | 1975 | XIV | 1 | 1 - 23 | General |
| Soulbury Commission, The 1944-45 | Jennings | Ceylon Historical Journal, The | 1955 - 1956 | 5 | 1, 2, 3 & 4 | 23 - 48 | Politics |
| Sound Highland Reservoir Eco System Management Can be a Productive Enterprise | Nathaniel | Loris | 1991 | XIX | 4 | 142 - 146 | General |
| Sources for a Study of the Reign of King Parakkamabahu 1, The | Wickramasinghe | Ceylon Historical Journal, The | 1954 - 1955 | 4 | 1, 2, 3 & 4 | 169 - 182 | History |
| South Ceylon Sea Resort, A | Goonewardene | Ceylon Today | 1960 | 9 | 8 | 22 - 25 | General |
| South Indian Mercantile Communities in Ceylon, Circa 950-1250 | Indrapala | Ceylon Journal of Historical & Social Studies, The | 1971 | 1 (New Series) | 1 | 101 - 113 | General |
| Sparrow-hawks or Fork-tailed Shrikes | Adithiya | Loris | 1968 | XI | 4 | 213 - 214 | General |
| Spartan Existence, A | Karunaratne | Loris | 1985 | XVII | 2 | 43 - 44, 62 | General |
| Spatial Distribution of Poverty & Unemployment in the City of Colombo | De Silva | University of Colombo Review | 1988 | 8 | N/A | 33 -57 | General |
| Spearfishing - the Other Side of the Coin | Jonklaas | Loris | 1979 | XV | 2 | 64 - 65 | General |
| Speech to the Ceylon Criminal Justice Commission | Wijeweera | Explosion in a Subcontinent | 1975 | N/A | N/A | 221 - 251 | General |
| Speeding Industrialisation | N/A | Ceylon Today | 1960 | 9 | 7 | 29 - 31 | General |
| Sperm Whales in the Indian Ocean, The | Manendra | Loris | 1989 | XVIII | 4 | 158 - 159 | General |
| Sperm Whales off Sri Lanka | Whitehead | Loris | 1982 | XVI | 1 | 23 - 24 | General |
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