So you are including agricultural, horticulture, natural history and
chemistry in botany too? Not exactly the same thing are they?

I never said they were.

Would you consider "library science" a science too? Do librarians ever use
the scientific method?

It depends on your definition of the word science.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)