In this paper I propose a semantics for gradually, a manner adverb.
In Proceedings of the Twenty-Sixth Annual Meeting of the Berkeley Linguistics Society, Lisa J. Conathan, Jeff Good, Darya Kavitskaya, Alyssa B. Wulf, and Alan C. L. Yu (eds.), pp. 445–456. BLS, 2000.
Paper, camera-ready version
http://pinon.sdf-eu.org/covers/hg.html