Chryssostomtdts 
It is by no means necessary to go into the esoteric detail that 
the author does, Very much simpler and reliable information can be 
obtained by straightforward consideration of the problem as the owner 
himself sees it, and I would recommend the author, if he has time, to 
look at some of the earlier work that has been published in the subject. 
Personnally, I find it quite tragic, looking over the references to many 
papers in this symposium, to find that very little of the work goes back 
more than five years. I do stress to my younger colleagues that quite 
a lot of good work was done before five years ago, and nobody will hold 
it against them if they refer to and see good in the work done 30, 40, 
50 or even a hundred years ago. 
I still hope, however, despite this criticism, that the author 
will continue with his subject, gain perspective and, by so doing, add 
to professional information on the subject. 
REPLY TO DISCUSSION 
Chryssostomos Chryssostomidis 
Massachusetts Institute of Technology 
Cambridge, Massachusetts, U.S.A. 
Thank you Dr. Telfer. The list of references included in my 
paper is not a complete list of all the material consulted. 
DISCUSSION 
Edmund Lover 
Admtralty Experiment Works 
Haslar, Gosport, Hants, U.K. 
For some time it has become apparent that a systems analysis 
including seakeeping considerations is necessary for modern ship de- 
sign, we should be grateful to the author for demonstrating how these 
might be taken into account. 
1626 
