526 DOXATIOXS AND EXCHANGES. 



Paris. 



Museum d'Histoiee Naturelle. — Bulletin, 1919, Nos. 4-7 (T. p. & c.) 

 (1919); 1920, Nos. 1-6 (1920); Nouvelles Archives 5th Ser., vi. (1914). 



SociETE ExTOJiOLOr.iQUE HE Fr^vxce. — Annales, 1920,, Ixxxix., 2 (1921); 

 Bulletin, 1920, 15-21 (T. p. & c.) (1920) ;'l921, 1-G and Supplement, 

 7-14 (1921). • 



Pavia. 



Instituto Botaxico dell'Uxiversita de Pavia. — Atti, Serie ii., xvii., 6 

 (T. p. & c.) (1920). 



Perth, 



Geoloi:ical Survey of Western Australia. — Annual Progress Report for 

 tlie year 1920 (1921); Bulletin, Nos. 78-81, 83 (1920-1921). 



Government Statistician, Western Australia. — Quarterly Statistical 

 Abstract, Nos. 219-222 (1920-1921). 



Philadelphia. 



Ar'ADEMv OP Natural Sciences. — Entomological News, and Proceedings of 



the Entomological Section of the Academy of Natural Sciences, xxxi., 



9-10 (T. p. & c.) (1920); xxxii.. 1-7 (1921); Proceedings, Ixxi., 2-3 



(T. p. & c); Ixxii., 1-2 (1919-1920). 

 American Philosophical Society. — Proceedings, Iviii., (1919); lix., 1-6 



(T. p. & c.) (1920); Transactions, X.S., x.xii., 4 (1920). 

 University op Pennsylvania. — Contributions from the Botanical Laliora- 



toiy, iv., 2 (Index); v., 1 (1919); Contributions from the Zoological 



Laboratory, xix.-xxi. (1914, 1918, 1920). 

 Wistar IX.STITUTE OP Anatomy AND BiOLOGY. — Journal of Experimental 



Zoology, xxxi., 3-4 (T. p. & e.) ; xxxii., 1-3 (T. p. & c.) ; xxxiii., 1-2 



(T. p. & c); xxxi v., 1 (1920-1921); .Tournal of Moiphologv, xxxi v.. 3 



(T. p. & c); XXXV.. 1-2 (1920-1921). 

 Zoological Society op Philadelphia. — Forty-ninlli Annual Rep.irt of the 



Board of Directors, 1920 (1921). 



Pietermaritzburg. 



Natal G<ivern.mext Museum. — Annals, iv., 2 (Nov., 1920). 



Pittsburgh. 



Carxecih Museum. — Annals, ix.-xi. (1913-15, 191(i, 1917); Memoirs, vi. 

 (1913-14). 



Plymouth. 



Marine Biological Associ.\tion of the United Kixgdom. — Journal, X.S. xii.. 

 3 (1921). 



Portici. 



Laboratorio di Zoolo<-;ia Gexeralk e Acrakma dki.la R. Scuola Supi-.riohe 

 d'Ai;i;icoltura. — ISollcttino, xi., xiv. (1910, 1920); Monografia dclle 

 Cocciniglie Italiane (Gustavo Leonardi) (1920). 



Pretoria. 



Botanical Survey op South Africa. — Memoir, Nos. 1-2 (1919, 1921). 



Pusa. 



Agricultural Research Institute.— Bulletin Nos. 98-99 (1921) ; Memoirs 

 of the Department of Agriculture in India, — Botanical Seri.es, x., 6; 



