10 
11 
V2 
Dagan 
Tuck, E.O. The effect of non-linearity at the free-surface 
on flow past a submerged cylinder, J. F.M., Vol. 23, pt. 2 
pp. 401-414, 1965 
Van Dyke, M. Perturbation methods in fluid mechanics, 
Academic, 1964 
Wehausen, J. V. & Laitone, E. V. Surface waves, in Ency- 
clopedia of Physics, Vol. IX, pp. 446-779, Springer, 1960 
Re ae = ie 
1730 
