446 THE CANADIAN NATURALIST. [Vol. viii. 



viduals, in all parts of America. His latest special work is an 

 elaborate revision of the difficult group of the Chitons, illustrated 

 with figures, executed by an eminent American artist, who was 

 induced to visit Montreal for the purpose. This paper, left un- 

 finished at his death, will probably be published by the Smith- 

 sonian Institution. 



The second name which it becomes me to mention here, is 

 that ol a man less known to many of you, but intimately known 

 to me, and whom we have the right to claim as a Canadian geo- 

 logist, and one of the highest standing — Charles Frederick Hartfe, 

 lato Professor of Geology in Cornell University, and Director of 

 the Geological Survey of Brazil, who died at Rio de Janeiro on the 

 19th of March last, at the early age of thirty-eight years. He w;is 

 a native of Nova Scotia ; and at Horton in that Province, where 

 he studied at Acadia College, and while still a student, he bee ime 

 known to me as a diligent and successful collector of fossils of 

 the Lower Carboniferous rocks. He subsequently engaged in 

 educational work in St. John, and with his friend Mr. Matthew 

 had the honour of fisst rendering intelligible the complicated 

 geology of that district, and of discovering and almost exhausting- 

 its rich Devonian Flora and Cambrian Fauna. The collection 

 and determination of the Cambrian fossils of what is now known 

 as the Acadian group, and the excavation of the numerous fossil 

 plants of the Devonian of the same district, constitute in my 

 judgment two of the most important advances ever made in the 

 palseontology of Eastern America, and are even yet bearing 

 fruit. It was my good fortune to be able to aid and encourage 

 Mr. Hartt in these earlier efforts, to determine his Lower 

 Carboniferous and Devonian plants, and to afford him in my 

 'Acadian Geology ' a medium of publication for his Primordial 

 fossils. Acting under my advice. Mr. Hartt, in order to perfect 

 his knowledge of palaeontology, entered the school at that time 

 recently established by Agassiz at Cambridge. This led to his 

 appointment to a chair of geology first at Vassar College and 

 subsequently at Cornell, and also to his connection with Brazil, 

 which began with his being attached in 1865 to the " Thayer 

 Expedition " to that country under Prof. Agassiz. The Mag- 

 nificent opening for geological work in Brazil seems to have 

 fascinated his mind, and I remember well the enthusiasm with, 

 which he wrote to me at a subsequent time of the almost identi- 

 cal fauna and flora of the Brazilian coal-measures with those he 



