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every illustration, map and section, picturesque view and well-marked 
fossil, which can aid in bringing vividly before the reader all the 
instructive and interesting features of the formations there described. 
The book must be looked upon as an admirable example of the 
sober and useful splendour which may grace a geological mono- 
graph. 
Having been tempted to dwell so long on this subject from my 
conviction of its importance, I must the more rapidly proceed with 
the remainder of my survey. Mr. Bowman sent us, “ Notes on a 
small patch of Silurian Rocks to the west of Abergele.” In this 
investigation, which is interesting to us as the first application of 
Mr. Murchison’s Silurian System, the author found strata of which 
some could be, by means of fossils, identified with the Ludlow rocks. 
Mr. Malcolmson has, by the remains of fossil fishes, shown that the 
calciferous conglomerate of Elgin represents the old red sandstone 
of Clashbinnie, as the Rev. G. Gordon had already supposed. Fi- 
nally, proceeding to higher strata, we have to notice a trait of the 
fossil history of the coal strata near Bolton-le-Moors, contributed 
by Dr. Black. A stem of a tree thirty feet long, and inclined at 
an angle of 18° in a direction opposite to the strata, was discovered, 
having upon it a Sternbergia, about an inch in diameter, extending 
the whole length of the stem, which had been, while living, a para- 
site plant, like the mighty existing creepers of the tropical regions. 
The most curious addition to cur fossil characters of strata, are 
the footsteps discovered on the surface of beds of the new red 
sandstone. It is well known that several years ago such marks 
were discovered at Corncockle Muir, in Dumfries-shire. Since that 
time similar discoveries have been made at various places, and espe- 
cially in 1834, in the quarries of Hesseberg near Hilbergshausen ; 
and to the animal which had produced the impressions then disco- 
vered, the name of Chirotherium was provisionally applied by Pro- 
fessor Kaup. In the quarries of Storeton Hill, in the peninsula of 
Worrall, between the Mersey and the Dee, marks were discovered 
strongly resembling the footsteps of the Chirotherium of Kaup: 
these were described by a committee of the Natural History Society 
of Liverpool, and drawn by J. Cunningham, Esq. Mr. James 
Yates has also described footsteps of four other animals from the 
same quarries; and Sir Philip Egerton has given us a description 
