Reviews and Book Notices. 115 



Coalfield. The first part of the paper, published about ten years ago, 

 was devoted to the Middle and Lower Coal Measures of the extreme 

 south of the coalfield in Notts, and Derbyshire. The present part is 

 occupied with an account of the Middle Coal Measures flora in Derbyshire 

 to the south of Chesterfield, the horizon of the plants discussed therein 

 being the roof of the Silkstone Seam. A list of new records from this 

 Seam is followed by a second and complete list of the species known from 

 Bond's Main and Grassmoor Collieries. There are notes on the following 

 species : — Calaniophloios verticillatiis, Sphenoptevis Potieri, S. Laiivcnti, 

 Neitropieris ubliqua and Stiginavia ficoides. These notes are illustrated 

 b}' three plates giving figures of the species. A biography is appended. 

 Following this is a paper by the late Col. Wheelton Hind on some 

 Carboniferous Ammonoids new to English rocks. Four species of Glyphio- 

 ceras, namely inconstans, obesum, corpulentmn and complicatum, have 

 been found at Kniveton, Derbyshire, in beds of Carboniferous Limestone 

 belonging to the Upper Carboniferous Beds of Vaughan's nomenclature. 

 They are all new to England, though two have been recorded from Ireland. 

 The zone is the lowest goniatite zone established in the Cai-boniferous 

 system. Notes of the goniatites, and the specific characters of two of 

 them are given, and the four species are figured in two plates. The 

 establishment of goniatite zones is of the highest importance, as it is 

 certain that such zones will be useful for correlation over wider areas 

 than those based upon occurrences of corals and brachiopods. Un- 

 fortunately, though goniatites are common, they are often crushed 

 beyond recognition, and it is satisfactor}^ to find that the goniatites of this 

 low zone are well preserved. The number concludes with a Bibliography 

 of Yorkshire Geology for 1918-19, by T. Sheppard. Mr. Sheppard's 

 name is a sufficient indication that this bibliography is full and accurate, 

 and will be most valuable for workers at Yorkshire Geology. — J. E. Marr. 

 Transactions of the East Riding Antiquarian Society, Vol. 

 XXIII., 1920 The contents of this number treat of matters ranging 

 from prehistoric ages to late historic times. The first two papers, treating 

 of the riVer-banks of Howdenshi!;e and the artificial drainage of this 

 district, are by Col. P. Saltmarshe. The author utilises his knowledge 

 as physical geologist and geographer, antiquary and historian, in the 

 solution of the problems with which he was confronted. He concludes 

 that the Ouse and Humber in the area imder consideration were not 

 banked in artificially in Roman times, but that they had a definite low- 

 water channel, and that embanking was begun by the Saxons, and 

 especially the Danes, prior to 959, the river having been confined to its 

 present channel as far as Howden or Kilpin by the middle of the loth 

 century. The section between Kilpin and Yoke fleet was embanked 

 between that date and the middle of the succeeding century, and from 

 thence to Faxfleet west of the mouth of the Foulney in the twelfth 

 century. A creek between Faxfleet and Brough was gradually filled in 

 by deposit, but not embanked till a century later. He gives reasons for 

 supposing that the tides of the Lower Ouse have recently increased in 

 height. The second paper, of an historical character, deals chiefly with 

 details of artificial drainage. A paper follows on Aldbrough Church, 

 Holderness, by Mr. G. F. Twycro.ss-Raines. It is shown that a church 

 existed here in iioo, if not earlier. The various additions of different 

 dates are described, the author being able to add information derived 

 from the fortunate discovery of a water colour of the exterior made before 

 the recent changes in the fabric in the latter half of last century. 

 Illustrations of the interior and exterior are given, the latter reproduced 

 from a water colour. A very interesting article by the editor, Mr. 

 T. Sheppard, is devoted to the origin of the materials used in the manu- 

 facture of Prehistoric Stone Weapons in East Yorkshire. The materials 

 from which the implements are made are chiefly derived from the local 

 glacial deposits, though it seems likely that some of the implements were 



921 MBr. 1 



