| Translation of Volumes 1 & 2 of the Galle Dutch Records, Made for the Society in Holland, 1640-44 | Anthonisz | Journal of the Royal Asiatic Society | 1902 | XVII | 53 | 259 - 528 | History |
| Translations from Baldaeus Book (mss dated 22/1/1836) - 1 | Brohier | Journal of the D.B.U. | 1951 | XLI | 3 | 111 - 115 | History |
| Translations from Baldaeus Book (mss dated 22/1/1836) - 2 | Brohier | Journal of the D.B.U. | 1951 | XLI | 4 | 180 - 186 | History |
| Translocation of the Deduru Oya Herd, What was Left of It | Banks | Loris | 1979 | XV | 2 | 113 - 115 | General |
| Transport in Sri Lanka in Ancient & Mediaeval Times | De S. Manukulasooriya | Journal of the Royal Asiatic Society | 1978-79 | XXIV New Series | N/A | 49 - 85 | General |
| Trapped by an Elephant | Agar | Loris | 1976 | XIV | 1 | 23 - 26, 68 - 69 | General |
| Travellers Tales of Our Birds | Jayawardana | Ceylon Observer Pictorial | 1973 | N/A | N/A | N/A | General |
| Trawling for Prawns | Weerakoon | Ceylon Today | 1964 | 12 | 3 | 21 - 25 | General |
| Treasure Island - Gems | Trimmer | Tourists' Ceylon | 1968 | 1 | 3 | 34 - 39 | General |
| Treasures of the Seas | Ekanayake | Observer Pictorial | 1996 | N/A | N/A | N/A | General |
| Treaty of 1766 | N/A | Journal of the D.B.U. | 1963 | LIV | 1 - 4 | 55 - 56 | History |
| Treaty of 1766 Between the King of Kandy and the Dutch, The | Reimers | Ceylon Historical Journal, The | 1953 | 2 | 3 & 4 | 265 - 274 | History |
| Tree of Life | Kannangara | Loris | 1977 | XIV | 3 | 153 | General |
| Tree of Life, The - Coconut Palm | Perera | Times of Ceylon Annual | 1966 | N/A | N/A | N/A | General |
| Trees | Gunawardana | Loris | 1993 | XX | 1 | 19 - 21 | General |
| Trees Around the Kandy Lake | Collure | Loris | 1986 | XVII | 4 | 147 - 150 | General |
| Trends & Differentials of Mortality Change in Sri Lanka, 1921-1979 | Dissanayake | University of Colombo Review | 1987 | 7 | N/A | 28 - 38 | General |
| Trends & Prospects for Ceylon Tea | Motha | Ceylon Journal of Historical & Social Studies, The | 1963 | 6 | 2 | 101 - 110 | General |
| Trends in Modern Sinhalese Literature | Mahindapala | Ceylon Today | 1960 | 9 | 10 | 26 - 28 | Literature |
| Trends of Urbanization in Ceylon 1901-1953 | Panditthratna | Ceylon Journal of Historical & Social Studies, The | 1964 | 7 | 2 | 203 - 217 | General |
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