EE VIEWS. 



559 



tion. — Page 441, line 15 from top, for "merely" read " mainly line 28 from 

 top for " Barkley, it" read " Barlcly, and." 



Errata in "Fossils or North Bucks." — Page 483, for " gryplisea" rostrata 

 read " glyphaa" rostrata; page 48G, for ce spliserodus" read " sphcerotkes (?) ;" 

 page 485, 2nd line, for "Gryhurst" read ''GayJmrst " page 487, for "Cardium 

 dissimile" read " C. cognattim ;" and, the same page, for "Pecten arenatus" 

 read " P. arenatus" 



Bone Spear-head. — Of the bone spear-head of which we have given two 

 views in Plates 13 & 14, we have less to say than we conld wish. Its history is 

 very short, and not so satisfactory as one could wish it to have been, although 

 the state and appearance of the fossil itself leaves no doubt of its strati- 

 graphical age. 



Mr. Robert Mortimer, of Timber, by whom the specimen was sent to us, 

 thus writes of it :— " I can only state at present that the specimen was picked 

 up by my brother, Mr. J. R. Mortimer, about three years ago, along with a 

 lot of shark's teeth, from a large heap of coprolite belonging to Messrs. 

 Rhodes, Smith, and Co., of Selby, manure manufacturers. The coprolite was 

 from Essex, but I cannot give the exact locality, nor any section showing tlio 

 bed it came from." 



This is all that is known about it, and it would be well that geologists in 

 the vicinity of any of the Essex, Suffolk, or Norfolk coprolite pits should 

 make close search for other examples. — [Ed. Geologist.] 



REVIEWS. 



North British Review for 18GL 



We have, on former occasions, more than once referred to Sir Roderick 

 Murchison's late successful elimination of the key-stone to Scottish Geology. 

 Eor years upon years the mighty masses of gneiss, sandstones, limestones, 

 schists, and slates were attacked persistently and elaborately by Macculloch, 

 and, Nicol, Jamieson, and other first-class minds without avail. In his early 

 manhood Sir Roderick, accompanied by another of our best workers in Paleo- 

 zoic Geology, walked over and sketched the massive strata of his native High- 

 lands, which again, after his long-laboured and most persevering exertions in 

 accomplishing the establishment of his Silurian formation, after his forty years 

 of active service in the cause of that one great and interesting group which he 

 has raised to a pre-eminence of elaboration unattained by any other section of 

 the great Past, his mind has returned to hi3 native land, and with the expe- 

 rience of an active life to guide his still persevering energies, he has snatched 

 its crowning glory from the spot which of all others must be most dear to his 

 heart. Of the labours of Mucculloch little is known to ordinary British geo- 

 logists, except by a few quotations and woodcuts in the popular works of 

 Lyell and others. But if Muccolloch, Nicol, and others failed it was because 

 they were mineralogists and not geologists. It would not be sufficient for a 

 man to distinguish readily the various qualities of papers of which the books 

 of a library were composed, if he were ignorant of the value and meaning of 

 the letters which were printed on their leaves. So the former Scottish 

 geologists, although prying with the utmost minuteness in the study of the mineral 

 characters and conditions of the Scottish strata, missed the true history of their 

 formation in not learning the value and meaning — indeed even the existence — 



