MONOGRAPH OF THE BRITISH FOSSIL SPONGES. 
ORDER OF BINDING AND DATES OF PUBLICATION 
OF VOL. I. 
| ISSUED IN VOL. | : 
PAGES PLATES FOR YEAR | PUBLISHED 
Title-page and Index (255-264) -— | 1911 | February, 1912 
1—92 Anu | 1886 March, 1887 
93—188 | IX 1887 January, 1888 
189—254 | X—XIX 1893 December, 1893 
