Full Idea
An experiment is a test (if T, then E implies R, so try E, and if R follows, T seems right), an adventure (no theory, but try things), a diagnosis (reading the signs), or a dissection (taking apart).
Gist of Idea
An experiment is a test, or an adventure, or a diagnosis, or a dissection
Source
report of Ian Hacking (The Emergence of Probability [1975], Ch.4) by PG - Db (ideas)
Book Reference
Hacking,Ian: 'The Emergence of Probability' [CUP 1975], p.35
A Reaction
A nice analysis. The Greeks did diagnosis, then the alchemists tried adventures, then Vesalius began dissections, then the followers of Bacon concentrated on the test, setting up controlled conditions. 'If you don't believe it, try it yourself'.