Conversation so far:
Who were Arthur Evans parents?
John Evans and Harriet Ann Dickinson
Did Arthur Evans have siblings?
He had two brothers, Philip Norman (1854) and Lewis (1853), and two sisters, Alice (1858) and Harriet (1857).
Were any of Arthur Evans's family influential in his career choice?
Did Arthur Evans do anything in archaeology with his brothers?
He would in summer go with his brothers and friends on excavation adventures.
Are there any other interesting aspects about Arthur Evans?
He is most famous for unearthing the palace of Knossos on the Greek island of Crete.
Which company was that?
Did Arthur Evans's family own the company?
What other things did Arthur Evans do for the company?
What did Arthur Evans do with numismatics?

Question: What kind of stone age artifacts did he discover while mapping stream beds?
Self-contained rewrite: What kind of stone age artifacts did Arthur Evans discover while mapping the stream beds?