1. H. Lamb,Hydrodynamics, 6th ed. (Dover, New York, 1932).
2. On the Stability of certain Vortex Motions
3. See National Technical Information Service Document No. AD-A149386∕5 (Woods Hole Oceanographic Institution Technical Report, WHOI-84-44). Copies may be ordered from the National Technical Information Service, Springfield, Virginia, 22161. The price is $22.95 plus a $3.00 handling fee. All orders must be prepaid.