user: Summarize in bullet points some methods used to produce verdigris.

assistant: - Hang copper plates over hot vinegar
- Bury copper strips with wooden blocks and acetic acid in dung and dig up weeks later
- Stack copper plates in clay pots of wine
- Combine copper(II) hydroxide and acetic acid

user: What was written in Ski-U-Mah?

assistant: Ski-U-Mah was the college humor magazine for University of Minnesota. Shulman wrote pieces for Ski-U-Mah humorously exaggerating campus culture.

It is not clear from the text what else was written in Ski-U-Mah, but presumably there were other humorous pieces written about topics relating to University of Minnesota.

user: Extract all of the names of people in the below text separated by commas and ordered in alphabetical order by first name

assistant: Alexander Graham Bell, Gilbert H. Grosvenor, Luis Marden