288 Announcements and Inquiries. 



Liuicstone is of Upper Senonian age ! Again, N^wleolites lacunosus 

 (an equally confident identification) is airily disposed of with the 

 remark that the genus has " many representatives in the Lower 

 Cretaceous ". Nucleolites (in the sense understood by both of us in 

 this case) ranges from the Bajocian upwards, and I fail to see why 

 the Corallian age of the Shenley Limestone should be disputed if 

 such an argument is to hold ! I assume that here, as elsewhere, my 

 critic intends to suggest that I have made a mistake in identification. 

 I should have little cause for complaint if he had stated that opinion 

 outright ; but hints and insinuations are unpleasant. Anyhow, 

 the specimens exist, and the truth is in them. 



But it is useless to haggle over names — especially when their 

 application by our forefathers is regarded as evidence in modern 

 palseontological stratigraphy. It is difficult to express in antiquated 

 terms the views of palaeontologists of to-day ; and still more difficult 

 to convince those who consider that a " new genus and species has 

 no present value for correlation " that they are mistaken. 

 Palaeontologists will understand me when I say that the whole 

 faoies of the Echinoid fauna under discussion suggests a " Warminster 

 Top-Beds " horizon ; and that failure to attach a single specific 

 name throaghout the list would in no way have detracted from my 

 confidence. 



I should like to close on a less controversial note. As a professed 

 palaeontologist, I am deeply gratefid to Mr. Lamplugh for an innova- 

 tion in his paper. The idea of printing " field-determinations " of 

 fossils in roman type, reserving italics for those based on special study, 

 seems extremely well-inspired. If generally adopted, the practice 

 will halve the difficulties of those who try to trace ranges as recorded 

 in literature ; had it been carried out since 1875, Mr. Lamplugh's 

 criticisms of my list might have been less voluminous and more 



convincing. 



Herbert L. Hawkins. 

 University College, Beading. 

 12th May, 1922. 



ANNOUNCEMENTS AND INQUIRIES. 



Professor H. L. Hawkins, Geological Department, University 

 College, Pveading, would be very grateful to any collectors or curators 

 of local museums who have specimens of Pygaster from authentic 

 British localities if they would communicate with him. He is 

 preparing a monograph for the Palaeontographical Society, and 

 desires to make it as complete as possible. At the present time he is 

 particularly anxious to see Pijgasters from the lower Oolites of the 

 Midlands and North of England. While fully prepared to accept 

 specimens as gifts or in exchange, he undertakes to cherish and 

 return all specimens lent on other terms. All such help will be duly 

 acknowledged in the monograph. 



