4tJ4r Bibliographical Notice. 



faint lunulate whitish subterminal line; a fine dark terminal 

 line. Hind wing silky white tinged with red-brown ; a (ine 

 dark terminal line ; cilia brown at base, whitish at tips. 



Hab. Cape Colony, Namaqualand, O'okiep, 1 $ type. 

 Exp. 46 mm. 



[To be continued.] 



BIBLIOGRAPHICAL NOTICE. 



VorJrshire Type Ammonites. Edited by S. S. Buckman, F.G.S. ; 

 with Photographs by J. W. Tutcher. Part 1. pp. i-xii, i-ii ; 

 12 Plates and Descriptions Nos. 1-8. London : William Wesley 

 & Son, 1009. 



All who concern themselves with the evidences of Evolution are of 

 necessity interested in the Ammonites, and, as a consequence, 

 treatises on this group are always welcome. 



Scattered up and down the country, either in Museums or in 

 private Collections, valuable material bearing on this study has' 

 accumulated, yet, owing to their relative inaccessibility, much of 

 their usefulness is lost. Mr. S. S. Buckman, who has devoted 

 laborious days to the study of this group, realizing this, is endeavouring 

 to effect a remedy by describing in minute detail at least one of 

 these collections, whereby, doubtless, mucli new and valuable 

 evidence bearing on the general problem of the evolution of the 

 Ammonites will bo brought to light. He has, in short, begun the 

 task — a by no means easy one — of cataloguing the Yorkshire type 

 Ammonites of the Jurassic : a large and valuable series. 



The first-fruits of his labours are given in the part now before us. 

 The work is to appear in about 16 parts, each containing from 12 to 

 16 plates of the specimens more or less imperfectly described and 

 figured by those pioneers in this field of study, Young and Bird, 

 John Phillips and Martin Simpson. The works of the two first 

 named are not easily procurable ; those of Simpson are still more 

 difficult to obtain, a fact the more to be regretted since they 

 contain sterling work and matter of prime importance, though this 

 fact is not generally realized. 



Mr. Buckman has undertaken the task of editing these early 

 contributions, supplementing the original descriptions by very 

 beautiful photographs of the specimens described — and most of these 

 figures appear now for the first time — and by concise editorial 

 comments. 



The section on Terminology will no doubt be gratefully received ; 

 nevertheless it bears a most forbidding aspect, and we confess 

 we cannot see the value of a large percentage of the terms here 

 set forth. They certainly do nothing towards elucidating the 

 study, and if they fail in this they are indeed useless. But in this 

 perhaps the author, and others, will not agree. Be this as it may, 

 the work when completed will prove of the highest value to all 

 students of the group. 



