61
Science of echoes or reflected sounds?
Answer
Catacoustics
62
Art of teaching by question and answer
Answer
Catechectics
63
Study of whales and dolphins
Answer
Cetology
64
Art of engraving on copper or brass
Answer
Chalcography
65
Study of properties of substances
Answer
Chemistry
66
Study of wealth; political economy
Answer
Chrematistics
67
Study of climate
Answer
Climatology
68
Study of aging or individual decline after maturity
Answer
Clinology
69
Study of manuscripts
Answer
Codicology
70
Study of beetles and weevils
Answer
Coleopterology
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