On a Hybrid Leaf-Monkey; with Remarks on the Breeding of Leaf-Monkeys in General | Hill | Spolia Zeylanica | 1936 | XX | 1 | 135 - 148 | General |
On a New Megascolex From Ceylon | Michaelsen | Spolia Zeylanica | 1909 | VI | XXIII | 96 - 101 | General |
On Demonology & Witchcraft in Ceylon | De Silva Gooneratne | Journal of the Royal Asiatic Society | 1865-66 | IV | 13 | 1 - 117 | General |
On Estimating the Duration of the Stone Age in Ceylon | Deraniyagala | Journal of the Royal Asiatic Society | 1936 | XXXIII | 89 | 261 - 263 | History |
On Reforestation with Useful Broad Leafed Indigenous & Exotic Species | Ekanayake | Loris | 1984 | XVI | 5 | 253 - 259 | General |
On Some Dutch Words Commonly Used by the Sinhalese | Buultjens | Journal of the D.B.U. | 1929 | XIX | 2 | 96 - 101 | General |
On Some Earthworms from Ceylon | Gates | Spolia Zeylanica | 1941 | 23 | 1 | 27 - 60 | General |
On Some Earthworms from Ceylon - II | Gates | Spolia Zeylanica | 1945 | 24 | 2 | 69 - 90 | General |
On the Breeding & Rearing of Certain Species of Primates in Captivity | Hill | Spolia Zeylanica | 1937 | XX | 1 | 369 - 389 | General |
On the Cestode Family Acoleidae, with a Description of a New Dioecious Species | Burt | Spolia Zeylanica | 1939 | XXI | 3 | 195 - 208 | General |
On the Occurence of "Odontolite" on Some Bovine Teeth | Candappa | Spolia Zeylanica | 1948 | 25 | 2 | 43 - 44 | General |
On the Occurences of Pumice on the East Coast of Ceylon | Wadia | Spolia Zeylanica | 1941 | 23 | 1 | 21 - 22 | General |
On the Road Over the Ferries | Gnanamuttu | Times of Ceylon Annual | 1962 | N/A | N/A | N/A | General |
On the Territorial Bahaviour of the Agamid Lizard | Kratzer | Loris | 1980 | XV | 3 | 162 - 163 | General |
On Trees & Forests | Stevens | Loris | 1994 | XX | 3 | 131 - 133 | General |
One Hundred & Eighty Miles on the Mahaweli Ganga | Markley | Loris | 1970 | XII | 1 | 46 - 52 | General |
One Large Nature Reserve or Several Small Ones? Applying the Island Biogeographic Theory to Sri Lanka | Wickramaratne | Loris | 1988 | XVIII | 2 | 50 - 53 | General |
Open Economy & Its Impact on Ethnic Relations in Sri Lanka | Gunasinghe | Sri Lanka - The Ethnic Conflict | 1984 | N/A | N/A | 197 - 214 | General |
Open Prison Camp at Pallakelle, The | Pillai | Ceylon Today | 1960 | 9 | 6 | 6 - 11 | General |
Open Prison Camp in Pallakelle, The | N/A | Ceylon Today | 1957 | VI | 1 | 19 - 20 | General |
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