The asymmetric profiles of 11 metallic lines are studied, at ~ = 0.3, as functions of ~. Their variations cannot be interpreted as due to temperature effects, but might imply a dependence on q~ of the photospheric velocity field. Solar Physics 57 (1978) 13-17. All Rights Reserved Copyright 0 1978 by D. Reidel Publishing Company, Dordrecht, Holland"I ~ u! UOA!~ S! so~nS!~ I ~ql u! posn sloqtu~s oql pue sou!l aql uooaxloq ozuopuodsoa.too oq,L "(E'O = O soo = r/) qtm.l oql tuoaj o3uels!p luvlsuoo ~ In opn~!lnl a!qdB-t~o!Ioq oql Jo suo.qounj stz sou!I luoaoJj!p jo (0)e/t(0)e-(~)e]---e/ev qlP!~-Jlgq [eloJ, oq~ jo pue (O)~/[(o)&r-(~)~]--= ~/bIV qldop I~.quoo oql jo SUO!le!~A OA!leI~ ~ "1 "~!d 06 9