| Maduru Oya with Bird Watching as a Bonus | Gunawardena | Loris | 1984 | XVI | 6 | 305 - 307 | General |
| Magic of Kalli Villu, The | Jayawickreme | Loris | 1970 | XII | 1 | 42 - 44 | General |
| Magilus Lankae: One of Sri Lanka's Rarest Seashells | Manamendra-Arachchi | Loris | 1999 | 22 | 2 | 11 - 12 | General |
| Mahabharata Legends in the Mahavamsa, The | Mendis | Journal of the Royal Asiatic Society | 1957 | V New Series | 1 | 81 - 84 | Religion |
| Mahadanamutta Stories, The | Peiris | Journal of the Royal Asiatic Society Journal | 1960 | VII New Series | 1 | 74 - 87 | General |
| Mahaweli - a Glorious Chapter for our History | Hemapriya | Observer Pictorial | 1988 | N/A | N/A | 35 - 39 | General |
| Mahaweli and its Role in Development | Dissanayake | Sri Lanka Today | 1979 | XXVI | 1 | 11 - 15 | General |
| Mahaweli Development Scheme, The | Cooke | Loris | 1972 | XII | 6 | 304 - 306 | General |
| Mahaweli Diversion Scheme, The | Manamperi | Ceylon Today | 1961 | 10 | 12 | 20 - 24 | General |
| Mahaweli Diversion Scheme, The - Its Effects on Wildlife & the Environment | Hoffmann | Loris | 1978 | XIV | 5 | 282 - 284 | General |
| Mahaweli Ganga Basin Development Project, The | Rajaratnam | Ceylon Today | 1968 | XVII | 11 & 12 | 34 - 35 | General |
| Mahaweli Ganga Diversion Project & the Resurgence of the Raja Rata, The | Schokman | Times of Ceylon Annual | 1973 | N/A | N/A | N/A | General |
| Majestic Mahabodhi, The | Wijesekera | Times of Ceylon Annual | 1974 | N/A | N/A | N/A | General |
| Major Jan Van Der Laen | Toussaint | Journal of the D.B.U. | 1931 | XX | 3 | 137 - 146 | History |
| Major Medeler's Relief Expedition | Raven-Hart | Journal of the Royal Asiatic Society | 1958 | V New Series | 2 | 183 - 275 | History |
| Major T. W. Rogers | Toussaint | Jounal of the D.B.U. | 1933 | XXIII | 2 | 57 - 66 | History |
| Major Threat to Oldest Wildlife Reserve | Hoffmann | Loris | 1977 | XIV | 3 | 133 - 137 | General |
| Making & Unmaking of Constitutions, The - Some Reflections on the Process | Thiruchelvam | Ceylon Journal of Historical & Social Studies, The | 1977 | 7 (New Series) | 2 | 18 - 24 | Politics |
| Making of Ceylon, The | Wadia | Spolia Zeylanica | 1941 | 23 | 1 | 1 - 7 | General |
| Making Use of our Forest Resources | Namasivayam | Ceylon Today | 1965 | 14 | 7 | 25 - 27 | General |
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