THE RULES OF NOMENCLATURE 373 



author's early death. Deals only with Protozoa, Coelen- 

 terata, Echinoderms, and Brachiopods. 



NICHOLSON, H. A., AND LYDEKKER, R. Manual of 

 Palaeontology (1889), Vol. I.: Invertebrata, Vol. II.: Verte- 

 brata and Plants. Still useful, though out of date in 

 certain sections. 



ZITTEL, K. A. (i) Handbuch der Palaontologie, 

 4 Vols. (1876-93) ; also French translation by Ch. 

 Barrois (1883-94). The most complete textbook, but 

 suffering from the lapse of time since its publication. 

 (2) Grundzuge der Palaontologie (1895, new edition, 

 1910-11), also English translation by C. Eastman, Vol. I. : 

 Invertebrata (1900, 2nd edn. 1913), Vol. II.: Vertebrata 

 (1902). (3) History of Geology and Palaeontology, 

 translated by M. M. Ogilvie-Gordon (Contemporary Science 

 Series, 1901). The chapters on Palaeontology and Strati- 

 graphical Geology are indispensable to any student wish- 

 ing to understand the history of research and the work of 

 the great pioneers. 



III. MONOGRAPHS OF EXTENSIVE NATURE. 



BARRANDE, J. Systeme Silurien du Centre de la 

 Boheme (1852-99). A series of very detailed and mag- 

 nificently illustrated monographs on the fossils of the 

 Lower Palaeozoic rocks of Bohemia. Barrande's own 

 work covers the Trilobites, M ollusca, and Brachiopods ; 

 and after his death other authors have added volumes on 

 Graptolites, Corals, Bryozoa, and Cystids. 



DESHAYES, P. G. Description des Coquilles Fossiles 

 des Environs de Paris, 2 vols. and Atlas (1824-37) : 

 Cainozoic Mollusca. 



D'ORBIGNY, A. D. Paleontologie Fran9aise (1840-55, 

 with later volumes by other authors). An attempt, never 

 completed, to figure and describe all the fossils of France. 



