208 
POPULAR SCIENCE REVIEW. 
Consolidated Blocks in the Drift of Suffolk. — At the meeting of the Geo- 
logical Society, on January 23, Mr. George Maw recorded the occurrence of 
large isolated masses of consolidated sand and gravel in the drift intervening 
between the chalk and boulder clay of the high ground of Suffolk. Many of 
the masses are several tons in weight. Although they occur at a general 
level, they do not form a connected band, loose drift, out of which they 
were evidently composed, forming a horizontal combination of their strata. 
The drift is largely charged with chalk-detritus, which also occurs in the 
softer blocks. Some of the blocks are extremely hard and compact, and in 
these the sandy agglomeration seems to have given place to a crystalline 
structure ; but the hardest of those found in situ were resolvable into sand 
by the action of hydrochloric acid, and appeared to be merely held together 
by a calcareous cement. 
A Fossil Myriapod from the Scotch Coal-Measures. — Mr. Henry Wood- 
ward lately presented a paper to the Geological Society of Glasgow, de- 
scribing a curious chilognathous myriapod, found by the late Mr. Thomas 
Brown in the upper coal-measures of Kilmaurs. The specimen described 
occurs in a nodule of iron stone coiled up somewhat in the form of the 
letter J, and measures about two inches. The body contains thirty seg- 
ments, each of which bears a slightly raised papilla, indicating the position 
of the tracheal openings ; while, to the sternum of each segment, a pair of 
slender feet appear to have been articulated. These feet are easily seen to 
be composed of a number of joints, as is the case with recent myriapoda. 
“ No soft-bodied annelid would be preserved in this condition,” the body- 
rings of worms which Mr. Woodward had examined, from Solenhofen, for 
example, being indicated rather by a stain upon the slab than by any re- 
lievo evidence of their presence, as shown in the specimen described. Mr. 
Woodward concludes that this myriapod possessed a chitinous exoskeleton 
sufficiently firm and strong to leave the impression of its limbs and joints in 
the soft clay in which it was buried. 
A new species of Plesiosaurus has been purchased by the British Museum. 
The specimen is from the Lower Lias, near Charmouth, and has been named, 
by Professor Owen, Plesiosaurus laticeps. It measures nearly 14 feet long, 
and, with the exception of the displacement of a few caudal vertebrae, the 
vertebral column is in a complete and natural state. It is mounted with 
the ventral surface toward the observer, and, with the exception of a portion 
of the paddles and part of the muzzle, the skeleton may be said to be 
complete. 
Foliation of Metamorphic Rocks. — Mr. G. H. Kinahan has written a very 
interesting memoir on the above subject, the gneiss and schist of Yar 
Connaught having specially received his attention; and, from Mr. Kinahan’s 
observations, it would appear that the foliation of these rocks seems generally 
to follow some variety of laminated and rarely the cleavage planes. Mr. 
Kinahan describes six varieties of foliation, one of which may follow the 
cleavage planes, while the five others follow the lamination ; the parallel 
foliation being caused by parallel lamination ; the oblique, by the oblique 
lamination ; the spheroidal, by the spheroidal lamination ; the crumpled, or 
wavy, by the crumpled lamination ; and the curled, by the lamination that 
is round the nodules. An instructive case is cited of this structure in the 
