oh and what about the 'arts' file, Andrew?...you had wanted to dig 'that one' up again....go figure:

https://en.wikipedia.org/wiki/Hartshorne,_Derbyshire

https://en.wikipedia.org/wiki/Hartshorne_ellipse

and what about the following?...go figure:

https://books.google.co.uk/books?id=CJ56CwAAQBAJ&redir_esc=y

local cohomology, anybody?