:It's used a tiny bit for pigement seperation by some botanists, although TLC would be more commonly used for the same procedure. The paper chromotography section is quite well written, and does clearly explain the principle of chromotography, plus it is a technique that a high-school or undergrad student may come across, so I'd be hesitant to see it cut. Mabye we should add a sentence to say that it is no longer a procedure widely used in labs