128 



PROF. W. J. DAKTN : EXPEDITION TO THE 



groups. Extensive collections resulted and many observations of interest 

 and importance were made. As a result it was felt highly desirous that a 

 supplementary expedition should be arranged as part of a scheme embodying 

 the investigation of the North- Western Coast. Fortunately the authorities 

 at home came once more to the rescue, and with the aid of a further grant 

 from the Percy Sladen Trustees, together with help from the Royal Society 

 Grant Committee and the British Association, a second expedition was 



Text-fio-ure 1. 



Lono U4°Ea9t- from Greenwich 



General Map of the Houtman Abrolhos Islands. 



made possible. On this occasion I was assisted by my colleague, Mr. A. 

 Cayzer, B.Sc, Assistant Lecturer in Biology, University of West Australia. 

 The fishing lugger 'Ada' was chartered and we left Geraldton for the 

 Abrolhos in October 1915, four weeks being spent amongst the islands. I 

 was fortunate in having more hydrographic equipment at my disposal on 

 the second expedition, and a rowboat fitted with a motor was of invaluable 

 service in connection with work in the lagoons. I can heartily recommend 



