The material concerns the following places: Magbiehill, Peebles (folio 1); Magdalen's House (Hamilton House, Prestonpans) (folios 2-10); Mains (Angus) or Fintry Castle (folios 11-14); Mains (Angus) Church (folios 15-17); Mains (Lanarkshire) Castle (folios 18-19); Mains (Stirlingshire) Castle (folios 20-22); Markinch Church and Stobcross (folios 23-33); Maryton Church and Tomb (folios 34-35); Masterton (folio 36); Mauchline Castle (folios 37-38); Mavis Bank (folios 39-40); Maybole Castle (folios 41-44); Maybole Collegiate Church (folios 45-49); Maybole Tolbooth (folio 50); Meadowbank; sundials at Bargaly, Prestonpans, and Ormiston (folios 51-55); Mearns Tower (folio 56); Meggatland; sundial at; sundials at Lochgoilhead, Barnbougle Castle, and Barnton House (folio 57); Meggernie Castle (folio 58); Megginch Castle (folios 59-61); Meigle, font (folios 62-64); Meikledale, fireplace (folio 65); Meikleour Cross (folio 66); Melgund Castle (folios 67-70); Melross Abbey (folios 71-119); Melrose Cross (folio 120); Melville House, sundial (folios 121-124); Menstrie Castle (folios 125-126); Merchiston Castle (folios 127-132); Methven Castle (folio 133); Methven Church (folios 134-136); Micheal Kirk (folios 137-138); Midhope House (folios 139-145); Midmar Castle; Aberdour, sundial at; Houston Cross (folios 146-152); Millearn House, sculptures in (folios 153-155); Mingarry Castle (folios 156-157); Minnigaff, sundials (folios 158-161); Minto Tower (folio 162); Mochrum Old Place (folios 163-167); Moffat Church (folio 168); Moncrieff Church; Exmagirdle (folio 169); Moncur Castle (folios 170-173); Monimail Castle (folio 174); Monkcastle (folio 175); Monkland House (folios 176-182); Monkton (Ayrshire) Church (folios 183-185); Monkton (Midlothian) House (folios 186-190); Montrose, panels in house near (folio 191); Monymusk Castle (folios 192-196); Monymusk Church (folios 197-200); Morham Church (folio 201); Mortlach Chapel (folios 202-204); Morton Castle (folio 205); Moulin Castle (folios 206-207); Mount Melville, sundial (folios 208-210); Mountquhanie Castle (folios 211-213); Mount Stuart, sundial (folios 214-218); Moy Castle (folio 219); Muchall's House (folios 220-222); Muckrach Castle (folios 223-225); Muness Castle (folios 226-228); Morroes House; Keil Church (folios 229-231); Murthly Castle (folios 232-234); Musselburgh Tolbooth (folios 235-236); Muthill Church (folios 237-256); Myres Castle (257-258).