That share will rise to 6.9 percent in 75 years, the trustees said.
The trustees said they would raise the remaining $40 million over the next five years.
The trustees said the building would be designed during the next year.
He did not wait to discuss it with the full board, or even the executive committee, several trustees say.
The trustees of the fund said they were to have started work next Thursday.
But the trustees have said they could not easily do that.
And some trustees said they had not seen copies until late last week.
The trustees said a search would begin immediately for a 14th president.
Several trustees said this week that they would welcome more time to consider the plan.
The trustees say that without political motivation, they will be able to focus entirely on education.