29 October 1992 To: JFE Data User From: D.R. Webster and J.A.C. Humphrey Re: Contents of this diskette HELICOIL is a file containing the data corresponding to Figures 4 to 10 in the paper by D.R. Webster and J.A.C. Humphrey, entitled: " Experimental Observation of Flow Instability in a Helical Coil," published in the Journal of Fluids Engineering, Transactions of the American Society of Mechanical Engineers, 1993. The directories on this diskette correspond to the figures in the paper and the notation in the directories corresponds to that used in the paper. Further inquiries may be directed to either one of the authors in the Department of Mechanical Engineering, University of California at Berkeley, Berkeley, California 94720.