Check out Johan Coenraad van Hasselt's haircuts throughout his career:
Johan Coenraad van Hasselt had a variety of different hairstyles during his lifetime. He reached fame as a great biologist, zoologist and herpetologist. However, the Dutch zoologist was mostly known for his beautiful sense of fashion and his likable character. Before his passing at the age of 26 he was frequently talked about in tabloids because of his superb haircuts. Check out Johan Coenraad van Hasselt's famous haircuts right here: