January 3, 1867. Meeting Dr. Hill at a private party, I asked him if Harvard College would admit girls in 50 years. He said one of the most conservative members of the Faculty had said within 16 days that it would come about within 10 years. I asked him if I could go into one of Prof. Peirce’s recitations. He said there was nothing to keep me out and that he would let me know when they came . . . .
The following Friday, Maria was there with her sister, Phebe Mitchell Kendall, and asked Peirce (I believe this is Benjamin Peirce she refers to) upon his arrival if she could attend. He answered in the affirmative but Maria was apparently unhappy with the response saying to him, “Can not you say ‘I shall be happy to have you.’ He answered her in the way she expressed though she noted that he didn’t seem happy, possibly in part because he was in a state of “undress” – meaning likely not up to snuff for a Harvard professor presenting to his Harvard students. Maria and Phebe took their seats, Maria apparently turned crimson (pun intended) when the male students arrived, and Peirce made several mistakes in his formulas. She also noted that the room was “very common looking” – something that she noted would never be allowed at Vassar.