723 



Owing to the prolonged drought mammals were scarce; 

 those collected have been dealt with by Mr. Edgar R. Waite. 



Reptiles were not nearly so numerous as on our expedi- 

 tion of the previous year; the selection secured this time has 

 been worked out by Messrs. Waite and Zietz. 



The work in connection with the insects has been under- 

 taken by Mr. Arthur M. Lea and others. In this branch 

 there is much new to science. Out of thirty species of ants 

 collected, something like twenty are new species or sub-species. 



There are also many new spiders in the collection, which 

 have been worked up by Mr. W. J. Ranibow, of Sydney, 

 some of which are of special interest. 



To all the above-mentioned gentlemen my sincere thanks 

 are due for adding to the value of this work. 



In conclusion, my thanks are tendered to the leader of 

 the expedition (Mr. Jack) for many kindnesses shown and 

 assistances rendered during a very arduous journey through 

 an almost waterless region. I pay a very strong tribute to 

 3ny assistant (Mr. J. P. Rogers) for the great interest he took 

 in the work and for his loyalty under very trying 

 •circumstances occasioned b}'' the great drought. 



The whole of the collection, with the exception of the 

 birds, has been donated to the South Australian Museum. 



DESCRIPTION OF PLATES. 



Plate XLIV. 



Map (facing page 707) of South Australia showing area 

 collected over by S. A. White. 



Plate XLV. 



Map (facing page 707) showing route traversed with the 

 Oeological Survey Expedition. 



l_The folloicirio plates are from photographs taken hy S. A. White.^ 



Plate XL VI. 



Fig. 1. — Glen Ferdinand, Musgrave Ranges, looking south- 

 west. 



Fig. 2. — Undulating sandy plain, with the Musgrave Ranges 

 in the distance — Mount Ferdinand the highest peak. 



Plate XLVII. 



Fig. 1. — Glen Ferdinand, Avith creek and the Pinnacles (Mus- 

 grave Ranges) in the distance. 



Fig. 2. — A ridge in the Musgrave Ranges covered Avith 

 Triodia aristata — the home of the Buff-throated Grass-Wren. 



Plate XL VIII. 



Fig. 1. — View in the Everard Range, near its centre, 

 looking east. 



Fig. 2. — View of the Divide near the head of the main valley 

 of the Everard, near Mount Illbillie, looking west. 



