INTRODUCTION 



others, when drought drives them in some seasons far 

 south, as it did in 1919 and the beginning of 1920. Many 

 facts recorded by the authors in this volume will help to 

 a fuller knowledge of Australian bird migrations. 



One pleasing and perhaps unexpected result of the work 

 of Messrs. Littlejohns and Lawrence is to prove that photo- 

 graphy is not necessarily an expensive hobby. The appara- 

 tus they used was of the simplest and of moderate cost. 

 The directions so clearly given will enable many to follow 

 in their footsteps. May their effort meet with the public 

 recognition it deserves. 



J. A. Leach. 



