Article About Oxford University Heraldry

I ran across an interesting article by John Tepper Marlin entitled "What's your blazon?" about the history of the coats of arms of Oxford University and a number of its constituent colleges.  Nicely illustrated, it's well worth a look by the heraldry enthusiast, particularly those with an interest in academic heraldry.

(This image is not from the article, but is an scan of an old postcard with the arms of the University and its colleges.)

You can find a .pdf of the article from Oxford Today at https://drive.google.com/file/d/0B5QuPgrWYYqRYTk5S09PbS1vak0/view