Jean, the book is catalogued in the Linen Hall Library, Belfast with slight differences to your information, with even more info in the British Library Catalogue
Author
Fisher, Frank Owen
Memoirs of the Camacs of Co. Down : With some account of their predecessors. / Edited by Frank Owen Fisher
Publisher Jarrold and Sons Norwich, Yarmouth and London : 1897
Notes "For private circulation
Copy for consultation in the Linen Hall Library, Belfast.
Another copy is at the British Library, London
System number 001243113
Author - personal FISHER, Frank Owen.
Title Memoires of the Camacs of Co. Down, with some account of their predecessors. Edited by F. O. Fisher. (Vol. 1. Memoirs of the Camocks.).
Publisher/year pp. x. 97. For private circulation: Norwich, 1897.
Physical descr. 4º.
Added Entry CAMAC, Family of, of Co. Down
Holdings (All) Details
Shelfmark 9906.bb.26. Request
Have you considered photocopying yourself if it is purely for private research, or asking someone willing to do it for you. the book is only 100 pages, which could be 50* A4 openings. It could be cheaper say on Amazon or e books etc or perhaps from Jarrolds who still exist in Norwich, England. I wonder did he leave a manuscript of Vols 2 or 3 etc.
Finally have you exhausted Ros Davies Co Down website where she has headings for CAMAC . . also see under Cammock & Comac
Good luck, Jim