The Vivien Law Prize is offered annually by the Henry Sweet Society for the best essay in the history of linguistic ideas. The competition is open to all currently registered students, and to scholars who have received their PhD or equivalent qualification within the last five years. Essays can be in English, French or German and up to 8000 words in length. Closing date is 30 September 2017.
Further information is available here: http://www.henrysweet.org/grants-and-prizes/vivien-law-prize/