strange one

I have a rush translation: a lecture given in 1846 to the Berlin physikalische Gesellschaft about eye muscles in birds.  I am puzzled:
Why, after 166 years, is it too urgent to keep past Monday?
Also, just why?

But it's interesting: eagle owls, cassowaries (that may be emus), bisected eyeballs, orbits, and geometry...

Anyway, normal human communication, or my best approximation of it, will be resumed after Monday.