1920.1 Recenth/ published Ornitkuiogical IVorks. 503 



each species is given concisely, aiul additional notes on the 

 dates of arrival, of nesting and other matters of interest 

 make np a most satisfactory account of the birds of this 

 interesting and now commercially important region of the 

 middle west of the United States. 



Hopkinson on Gambian Birds. 



[A List of the Birds of the Gambia. By Emilias Ilopkiiison. 

 Briohton, 1919. Pp. 1-Si'.] 



This list is partly compiled from other works, and partly 

 gives information from the writer's own experiences in the 

 most northerly of the British Possessions in West Africa. 

 It is at present only a first instalment, which it is hoped 

 to continue. Little is given under the specific name except 

 the range and status of each form, but a trustworthy list 

 of the birds of such a country must always be useful. 



Jaarbericht, No. 9 : Club van Nederlandsche Vor/el- 

 kundi(/en. 



Ill this year's bulletin we have articles on Netherland 

 Ornithology, by Baron Snouckaert van Schauburg; on 

 the question of the Origin of new Species by crossing, 

 by Heer Stresemaun ; on the birds of Deli in Sumatra, 

 by Heeren van Heyst, Van Balen, and others. There is 

 also a sketch of the journey of Van Hcurn between Java 

 and America, as well as some remarks on Buteo buteo 

 ruficuudus l)y Heer Heus. 



Mai/iews on Australian Birds. 



[The Birds uf Australia. By Gregory M. Mathews. London : 

 Feb. 16, 1920. Supplement No. 1, being Check-List of the Birds of 

 Australia. Part I. — Orders Casuarii formes to INleniu'iformes.] 



In this supplement jNlr, Mathews gives under each genus 

 and species every synonym known to him, with references 

 to the Plates of his work and that of Gould. An attempt 

 has been made, with the help of Dr. Richmond, to give the 

 day on which each name was published, and we note that 

 three new names are to be proposed in the next number of 

 the ' Austral Avian Record.' The exact method of recordmg 



