Yes, it looks like escape from Innsmouth maybe the source book I was looking for.
Unless I was dreaming when I held it in my hands at Forbidden Planet or Orcs Nest ( not that impossible

) then it has possibly been reprinted
The review on Yog Soggoth.com ( a very usefull website for all HPL fans) makes it sound very valuable for anyone interested in Innsmouth as a setting
I will try to lay my hands on a copy as soon as possible
Barry
(Barrington Bartrum Carter-Smythe....or Barty to my fellow adventurers, except to young Sparrow, by whom I should be addressed as Mr Carter-Smythe sir)
