AA, will be the least expensive pavilions because the lower story will be covered by the Dormitories one story high (which I suppose will also be study rooms) and might be built first. BB pavilions having the same dimensions, and general Mass but exhibiting different styles of Architections. CC do. do. DD do. do. Center building which ought to exhibit in Mass & details as perfect a specimen of good Architectural taste as can be devised. I should propose below, a couple or 4 rooms for Janitors or Tutors, above, a room, for Chemical or other lectures, above a circular lecture room under the dome; The pavilions to be, as proposed, habitations of Professors and lecture rooms. But, if Professors are married, will they not require more than 2 rooms each, and a kitchen. I have exhibited such an arrangement. --

    The above is the arrangement, I believe, sketched in your first letter, and might be executed on ground, falling each way East and West from the Center, and descending as much as may be N & South, because the E & West sides of the Quadrangle might be detached from the upper range.