Naology – study of church or temple architecture Nasology – study of the nose Nautics – art of navigation Nematology – study of nematodes Neonatology – study of newborn babies Neossology – study of nestling birds Nephology – study of clouds Nephrology – study of the kidneys Neurobiology – study of anatomy of the nervous system Neurology – study of nervous system Neuropsychology – study of relation between brain and behaviour Neurypnology – study of hypnotism Neutrosophy – study of the origin and nature of philosophical neutralities Nomology – the science of the laws; especially of the mind Noology – science of the intellect Nosology – study of diseases Nostology – study of senility Notaphily – collecting of bank-notes and cheques Numerology – pseudoscientific study of numbers Numismatics – study of coins Nymphology – study of nymphs Nanotechnology – study of nanite