Archer John Porter Martin CBE FRS (1 March 1910 – 28 July 2002) was a British chemist who shared the 1952 Nobel Prize in Chemistry for the invention of partition chromatography with Richard Synge.[1][2] (wikipedia)
Much can often be learned by the repetition under different conditions, even if the desired result is not obtained.
Since, however, it is immaterial whether the work is done by assistants or a machine, I decided to build a machine equivalent to an array of about 200 separating funnels.
If every conceivable precaution is taken at first, one is often too discouraged to proceed at all.