someone who studies sound and it's properties is a Audiologist
A person who studies sound is called an acoustician.
A person who studies genealogies is a genealogist.
a person who studies people but not an psychologist
A person who studies organisms is called a biologist.
a person that studies gems is called a gemologist.
what do you call somebody who studies snails.
A person who studies poisons is called a toxicologist.
A person who studies the earth is called a geologist.
A person who studies birds is called an ornithologist.
A person who studies birds is called an Ornitholoigst
A person who studies the mind is called a psychologist.
A person who studies theology is called a theologian.