470 Reviews — Geological Survey South of ScarboruiKjh. 



spaces between the main septum and the adjacent septa, where 

 the new septa are inserted when, by tlie growth of the coral, the 

 space became larger than the other interseptal loculi, just before 

 the insertion of a new septum. 



Such, we think, are the chief facts brought forward and the chief 

 questions touched upon in this paper, which, while containing new 

 and interesting observations, and raising important questions, does 

 not do much towards solving these questions, and is lacking in 

 arrangement; so much so that it is exceedingly hard to follow any 

 thread of argument running through the whole ; and beyond giving 

 a clear definition of the main septum, and showing that it occurs 

 indifferently on the convex and concave side of the corallum, the 

 paper does little but put forward suggestions bearing on the origin 

 of the peculiarities of the Kugosa. W. D. L. 



in. — The Geology of the Oolitic and Cretaceous Rocks south 

 OP ScARBOKouGH. By C. Fox - Strangways, F.G.S. Ed. ii. 

 Memoirs of the Geological Survey England and Wales, pp. i-iv, 

 1-119. With 11 plates and numerous woodcuts. (London, 1904. 

 Price 4s. 6d.) 



THIS memoir is designed to illustrate and explain sheets 54 and 

 55 (New Series) of the Geological Survey. It contains a great 

 amount of most useful and interesting information, not only 

 concerning the Secondary Rocks, from the Lower Oolites to the 

 Upper Cretaceous, of the district covered by these sheets, but 

 also deals with various superficial deposits. Further, there are 

 certain remarks concerning the physical and geographical features, 

 but these are somewhat disappointing reading : the author gives the 

 impression that he lacks a firm grip of the principles of these 

 subjects, which have been so ably handled in various modern 

 text-books. 



The chief value of the memoir lies in its geological and 

 palseontological information. Looking at it from the foreigner's 

 point of view, we may regret that the author does not indicate his 

 zones more fully throughout his various sections, so that the stranger 

 may see at a glance with what rocks at home he may compare 

 these Yorkshire strata. But a great help to such a stranger 

 are the excellent plates reproduced from photographs, showing 

 characteristic sections. Only here one must be allowed a regret 

 — that the tracing-paper plans covering the plates were not more 

 carefully lettered. A fine feature is spoiled by a small detail ; for 

 these plans are not always legible. They lack care in their 

 preparation. 



In the matter of illustration the palfeontological portion of this 

 memoir has not been liberally treated. The indifferent woodcuts are 

 not creditable to the author's work, for in many cases they fail to 

 give recognizable pictures ; and, what is more serious, they are not 

 illustrations made from local fossils. They are just stock woodcuts, 

 and it is plain that they have had a past. They should not be 

 allowed a future. 



