Ian continues, ‘As far as I can see this predates the college boathouses and shows the number of barges along this stretch of the Isis, around 25 on my count. Unfortunately, the web site requires you to register before allowing you to zoom in.’
Thank you, Ian, for pointing out this great image.
There are more interesting rowing images on this web site, you will find some from The Boat Race here.
(This blog post was updated at 10:30 a.m., 1 May, 2013)