Subject
- Musical instruments1
- Muslim scientists1
- Mussels1
- Narwhal1
- Natural history73
- Natural history museums1
- Natural history--Catalogs and collections1
- Naturalists4
- Nature1
- Netherlands--Holland (Province)3
- Nettles1
- Newton, Isaac, 1642-17273
- Nichols, John, 1745-18264
- Nickel ores1
- Nitric acid1
- Norton, Joice20
- Norton, Thomas2
- Numismatics3
- Occultism12
- Occultists1