Notes, Reviews and Comments. 227 



March iith, 1897, Ottawa Field-Naturalists' Club. — ''Fruit 

 and Fruit Districts of Canada" by Mr. John Craig, Horticul- 

 turist, Dominion Experimental Farms. 



The valuable remarks made by His Excellency the Gover- 

 nor General, who, as patron of the Club, has always taken much 

 interest in the work of the Club by attending on several 

 occasions, together with remarks by members of the O. F. N. C. 

 and the excellent lecture delivered by Mr. Craig, will shortly 

 appear in the OTTAWA NATURALIST. 



This lecture closed the series of winter soirees which were 

 exceedingly well attended throughout. 



Notices and Reviews of Recent Geological 

 Literature. 



Beecher, Charles E. — Outline of a Natural Classification of 

 the Trilobites. Articles VIH and XVHI, Amqr. Journ Sc, 

 4th Series, Vol. HI, pp. 89-106 and 181-207, Plate HI, 

 New Haven, March, 1897. 



Following up his own good work on the ontogeny, struc- 

 ture, appendages and systematic position of the trilobites. Dr. 

 Beecher presents to us his arrangement of the families of trilo- 

 bites. We have much pleasure in reproducing his scheme as 

 follows : — 



SUB-CLASS TRILOBITA. 



ORDER A. — HYPOPARIA. 



Family I. Agnostidae. Family 3. Trinucleidse. 



" 2. Harpepidje. 



ORDER B. — OPISTHOPARIA. 



Family 4. Conocoryphidte. Family 8. Bronteidse. 



" 5. 01enid[fi. " 9. Lichadida;. 



" 6. Asaphidse. " 10. Acidaspidte. 



" 7. Proetidffi. 



ORDER C. — PROPARIA. 



Family 11. Encrinuridse. Family 13. CheiruridEe. 



" 12. Calymenidse. " 14. Phacopidge. 



