472 Revieivs — The Survey Memoir on the Scottish Uplands. 



III. — A Paleozoic Tekrane beneath the Cambrian. By Geo. F. 

 Matthew. [Annals New York Acad. Sci., vol. xii, No. 2, 

 pp. 41-56.] 

 n^HIS article describes an unconformable series of rocks below tbe 

 _l true Cambrian measures, containing Paradoxides and Agraulos 

 strenuus, and therefore claimed to be pre-Cambrian. The series has 

 been observed in Cana<la (Southern New Brunswick) and New- 

 foundland, in both of which countries the erosion of the underlying 

 terrane (Etcheminian) to a greater or less extent had occurred before 

 the deposition of the Cambrian. 



Eemains of a fauna had been found in these beds in New 

 Brunswick, but only of a fragmentary kind, and only low organisms 

 had, as a rule, been recognized. The Newfoundland beds yielded 

 better results, and Mr. Matthew now records from the terrane the 

 following forms : — 



Hyolithes 2 species, Orihotheca 4 sp., Urotheca (n.gen.) 1 sp., 

 Aptychopsis 1 sp., Kutorgina (?) 1 sp., Obolella 1 sp., Obolus 1 sp., 

 Coleoides 1 sp., Hyolithellvs 2 sp., Helenia 1 sp., PalceaomcBa 1 sp., 

 Scenella 2 sp., Platyceras 3 sp., Modiolopsis 1 sp., Platysolenites (?) 

 1 sp. Besides these there are fragments of Cystidians and burrows 

 and trails of worms. 



" The uniformity of conditions attending the deposition of the 

 Etcheminian throughout the Atlantic Coast province of the Cambrian 

 is surprising, and point to a quiescent period of long continuance, 

 during which the Hyolithidas and Capulidab developed so as to 

 become the dominant types of the animal world, while the 

 Brachiopods, the Lamellibranchs, and the other Gasteropoda still 

 were puny and insignificant." 



12. IB "V I :E3 "W S. 



■ I. — The Survey Memoir on the Scottish Uplands. ^ 



I HAVE been requested by ray friend the Editor of tbe 

 Geological Magazine to review this latest, finest, and most 

 original of the monographs issued by the British Geological 

 Survey ; and although for many reasons I should have preferred 

 that the request had been made to some younger geologist, and one 

 less personally interested in the subject, yet as an old worker 

 in the Upland region to which the volume is devoted, an opponent 

 of the old ideas of the succession, and an advocate of the new, 

 1 have no choice but to comply. 



In the first place attention must be directed to the great advance 

 which this monograph shows upon the previous Survey publica- 

 tions of the corresponding type as regards external get-up, paper, 

 printing, illustrations, and last, but b}' no means least, reasonableness 

 in price. We have here a handsome volume, a large octavo of some 



1 Memoirs of the Geological Survey of the United Kingdom: "The Silurian 

 Rocks of Britain," vol. i, Scotland, 1899. 



