104 The Irish Naturalist. Sept., 



MacHenry was probably the last link with the dis- 

 tinguished geological circle which Dublin was so fortunate as 

 to possess in the past century. He knew personally and dis- 

 cussed geology with Tait, Griffith, Oldham, Haughton, John 

 Kelly, and others, whose names will always be associated with 

 the palmy days of Irish geology, when a wide popular interest 

 which, alas, is now almost extinct, was taken in its study. 

 A reference to the earlier Journals of the Geological Society 

 of Dublin will show the class of Dublin citizens and others 

 who pursued the study of the subject. MacHenry 's 

 official relations with such men as Jukes, Hull, Du Noyer, 

 Kinahan and Baily were of inestimable value to him, and he 

 never omitted to express his indebtedness to them for much 

 that he knew, and he was not above appreciating the 

 memory and past experience of such of his colleagues as he 

 might have occasion to consult. His extensive knowledge 

 of all parts of Ireland constituted him a species of " enquire 

 within "when foreign or other visitors required information, 

 and he was almost invariably sought out as leader of 

 geological trips through various portions of the country ; 

 in this respect attention may in particular be called to his 

 sketch of the geology of County Antrim, compiled for the 

 visit of the Geologists' Association in 1895, which affords a 

 concise account of the geology of the district, and must 

 prove of great interest and utility to those studying it. 

 His genial, friendly disposition much enlivened expeditions 

 fortunate enough to secure his presence, and his society at the 

 dinner-table, where his qualities as a raconteur and narrator of 

 former incidents of geological days braced up many a tired- 

 out geologist and were only equalled by his discourses in the 

 field. He accompanied Sir Archibald Geikie on his numerous 

 inspections throughout Ireland, and in earlier years, when 

 Professor T. H. Huxley described the Amphibia of the 

 Leinster coalfields, MacHenry was of much assistance to 

 him in his researches over the district. 



Of a quiet, retiring disposition, MacHenry sought no 

 publicity, and outside his official Survey writings and 

 association with Kinahan in some of the latter's works left 

 but too few records of what he knew of Irish geological 

 history. His genial personality and helpful friendship will, 

 however, always endear his memory to those with whom 

 he came in contact. 



R. Clarke. 



