R.I. 347 Time-Harmonic Electromagnetic Fields Chiral Media by H. Ammari and J.C. Nedelec We investigate the scattering problem by an inhomogeneous object embedded in a chiral media. The boundary integral equation method is used to prove the existence and uniqueness of solutions of the problem. The whole paper is available as a compressed Postscript file by internet procedure FTP anonymous on host barbes.polytechnique.fr ( 129.104.4.100) in the directory pub/RI/1996 under the name ammari_nedelec_347.jun.ps.gz or by Xmosaic or any other www client via the CMAP www server "http://blanche.polytechnique.fr/"