Reviews — Memorials of John Gunn, 425 



group that yet requires elucidation. Dr. Jaekel has done good 

 service in dispelling a remarkable illusion ^ and in adding some 

 important facts to our knowledge of the armoured Sharks of 

 Palaeozoic times ; but we will conclude with the hope that in future 

 the author's contributions of this kind may bear signs of maturer 

 study and be less overburdened with reckless speculation. 



A.S.W. 



III. — Memorials of John Gunn, M.A., F.G.S. : being some Ac- 

 count OF THE Cromer Forest Bed and its Fossil Mammalia, 



AND OF THE ASSOCIATED StRATA IN THE CliFFS OF NoRFOLK 



and Suffolk, from the MS. Notes of the late John Gunn. 

 With a Memoir of the Author. Edited by Horace B. 

 Woodward, F.G.S., vs^ith the assistance of E. T.Newton, F.G.S., 

 F.Z.S. (Norwich: W.A.Nudd, 1891.) 



FOR the last half century Mr. John Gunn has been a central 

 figure among the geologists of Norfolk, and the present volume 

 is a vrelcome addition to the records of work accomplished by local 

 observers, to whom British Geology is so much indebted. At the 

 time of his death Mr. Gunn was occupied with a second edition of 

 his " Sketch of the Geology of Norfolk " (contributed in 1883 to 

 White's History and Gazetteer) ; and a series of plates illustrating 

 the larger Mammalian remains of the Cromer Forest Bed had already 

 been prepared and printed. The MS. was well advanced towards 

 completion, and, by the expressed wish of the author, it was 

 entrusted to Mr. Horace B. Woodward for publication in whatever 

 form might seem most desirable, Mr. Woodward wisely decided 

 not to reprint the earlier "Sketch," which is already accessible, and 

 would have required much alteration in the bringing up to date ; 

 but, with the assistance of Mr. E. T. Newton, he only selected such 

 portions of the Supplementary Notes as contained Mr. Gunn's 

 original observations and opinions. A short Memoir of the Author, 

 with a Portrait, and a summary of his work, have been added to 

 these notes ; and the series of plates, with the explanatory remarks, 

 form an interesting guide to the Gunn Collection of Forest Bed 

 Mammals now preserved in the Norwich Museum. 



The principal items in the biography of Mr. John Gunn were 

 given in the obituary notice in the Geological Magazine of July, 

 1890 (pp. 331-333). Mr. Woodward's additional notes on some of 

 his papers, however, are worthy of enumeration. Though chiefly 

 concerned with the later formations, Mr. Gunn paid some attention 

 to the Chalk and underlying rocks ; and his opinions concerning the 

 Red Chalk and the possibility of discovering Coal-measures beneath 

 the Secondary strata of Norfolk are worthy of respect. The age 

 and relations of the stony bed at the base of the Norwich Crag 

 received much attention from the author, who was especially 

 interested in the Mammalian remains it yielded ; and two important 

 sections (one at Bramerton, the other at Coltishall) are reproduced 



^ 0. M. Eeis, Geognost. Jahrb. 1890, p. 30. 



