1870. } LANKESTER—NEWER TERTIARIES OF SUFFOLK. 499 
Contemporary phenomena in 
Suffolk and Norfolk. 
1. Assent. 1. Highest Norwich Crag. 
2. Later Red Cray. 2. Norwich Crag. 
3. Older Red Crag. 3. Forest-bed and flephas-meridio- 
nalis fauna of Stone-bed. 
4 or 5. Coralline Crag. #, ApsEnt. 
5 or 4. Mastodon arvernensis, Hguus, 5. M. arvernensis, and some species of 
and Cervus, sp., of Bone-bed. Equus and Cervus, of the Stone- 
bed. 
6. Diestien, Box-stones of Bone-bed. 6. ApsEnt, 
7. Rhinoceros Schleiermacheri, Masto- | 7. ABSENT. 
don tapiroides?, and Miocene forms 
of the Bone-bed. 
. ABSENT. 
(o>) 
8. Eocene Beds. Coryphodon, Hyra- 
cotherium, of the Bone-bed. 
eB 9, Chalk, 
II, Tur Surrouk “ Box-sronnzs.” 
Mr. Searles Wood has alluded to certain sandstone-nodules occur- 
ring’ in the Suffolk Crag and scattered on the coast, as containing 
shells, and being probably indurated bits of Coralline Crag. He has 
also figured, in the ‘Supplement’ to his invaluable ‘ Monograph of 
the Crag Mollusca,’ the internal cast of a Pyrula from one of these 
nodules, which he terms Pyrula acclinis. In the ‘Geological 
Magazine’ for 1865, and in the ‘ Quarterly Journal’ of this Society 
for the same year, I pointed out that these sandstone masses contain 
remains of Mollusca and Cetacea similar to those of the Diestien 
Antwerp beds, and I inferred that the nodules were remnants of a 
broken up deposit of Diestien age. In 1867 I devoted some time 
to examining these nodules, and gave a further account of them in 
the ‘Geological Magazine’ for that year (p. 91), in which I pointed 
out that they formed part of the Suffolk bone-bed, and lay at the 
base of both Red and Coralline Crags. I also gave a list of some of 
the organic remains found enclosed in these masses. I have since 
spent a good deal of time in working at the nodules, which I pro- 
pose to call ‘“‘ Box-stones,” since the name of ‘“ boxes” has been ap- 
plied to those which exhibit the remains of a shell on being broken 
open by the phosphate-diggers of Suffolk. My friend the Rey. H. 
Canham, of Waldringfield, has also worked at the “ Box-stones,” and 
has kindly placed his specimens at my disposal. I must express my 
great indebtedness to him for the use of his valuable collection. 
The majority of the box-stones contain no fossil remains at all, and 
are simply irregular rounded masses of very much hardened sandstone. 
Probably not one in twenty of the masses contain any organic remains 
