IN MEMORIAM — GEORGE HANN. 209 



fera being met with. To explain this, it had been suggested to him, 

 that the chalk here was not in its original position, but had been 

 denuded, before consolidation, from some other part of the sea-bed, 

 and possibly carried by currents a considerable distance. The 

 rolling and exposure to which the foraminifera would in such a case 

 be subjected, might account for the absence of the more minute 

 shells, the larger and stronger ones alone remaining. The President 

 said that the idea was new to him, and that he should require 

 evidence from a more extensive area, before entertaining it. The 

 Secretary next called attention to the fact that in the upper beds the 

 various sponge spicules were represented by casts alone, whereas in 

 the lower beds of the Upper Chalk they were found replaced with 

 calcite. On resuming the walk, the party proceeded to a pit on 

 Nafferton Wold, where a higher zone of the chalk was exposed to view, 

 and found to contain Ventriculites radiata, V. angustaia, V. cribosa, 

 ]'. convoluta, Seliscothon planus, Verniculina papillntn, Belemnitella 

 mucronata, B. quadrata, Scaphites injlatus, S. crqualis, Hatnites, etc. 



Mr. Waite announced that Mr. J. R. Mortimer had invited the 

 members to visit his museum, and proposed a vote of thanks to him 

 for his kindness. This was seconded by Mr. J. W. Davis, and 

 unanimously carried. A vote of thanks passed to the Chairman, 

 on the motion of Messrs. W. Denison Roebuck and J. Thrippleton, 

 terminated the meeting. 



Afterwards a number of the members proceeded to inspect 

 Mr. Mortimer's most admirably arranged museum of geology and 

 archeology, and were much interested in the objects which he has 

 brought together. Particularly attractive to the conchologists were 

 some boxes of specimens of shells found in the ancient barrows on 

 the Wolds, including Helix jiejnoralis in abundance, H. arbustoruni, 

 Succinea piitris in numbers, and Achatina acicula, the latter being a 

 species not recorded for the East Riding. — E.R.W. 



gn "J^Slcmoriam. 



The Ikadford Naturalists' Society have sustained a heavy loss by the death of 

 theii- President, Mr. George Hann. A clerk in the Inland Revenue, he had tilled 

 office in Glasgow, Brighton, Dorsetshire, Sheffield, and since May 1S86 at Bradford. 

 He joined the Bradford Naturalists' Society and the Bradford Scientific Association 

 on his arrival from Sheffield, where he had previously done good service and made 

 many friends. Botany was his favourite study, but he was also interested in 

 various other branches of natural history. He was an enthusiastic worker in the 

 field and a well-read man, with clear views on any subject he took up, coupled 

 with a retentive memory. He held the office of President of the Bradford 

 Naturalists' Microscopical Society durini; 1889, and as the office he held expired 

 before the conversazione was held, the Society considered it was expressing itself 

 but very inadequately for the services he rendered in connection by re-electing him 

 for 1890. Since Easter he had been in very indifferent health, and died on the 

 1 2th May. 

 July iSgo. ^ 



