The third meeting in the MiLS (Mathematics in Life Sciences) series was held in the Department of Mathematics at Surrey on Wednesday 28 September.  The theme of this conference is Mathematics of Biological Rhythms.  A programme with talk titles and abstracts is here.  Gianne Derks leads the local organisation, Anne Skeldon is the first speaker, and Philip Aston is the final speaker. MiLS is funded by the London Mathematical Society.