18 INAUGURAL ADDRESS. 



Australia, so far as it was known to him. The great merit of this 

 attempt to exhibit approximately the principal features of this 

 continent is that of piecing together the isolated observations of 

 previous authors into a connected outline. This, because of his 

 personal knowledge of considerable portions of the coastline of 

 Australia, he was of all others the best able to do successfully. 

 The result is a general but distinct notion of the geological structure 

 of Australia, which is further illustrated by a geologically- 

 colored map, the first containing so broad a survey. The author 

 added nothing to our previous knowledge, but systematised what 

 Avas known, and the speculations and generalisations which he 

 ventured to put forward have for the most part proved correct. Some 

 of the most valuable contributions of later avithors will be found to 

 have been foreshadowed, or even clearly noted by Jukes, whilst some 

 actual discoveries were anticipated by him. His map shows — (1) 

 Alluvial deposits, (2) coral reefs, (3) Tertiary rocks, (4) unknown, 

 probable Tertiary, (5) Palseozoic rocks, (6) unknown, probable 

 Palaeozoic, (7) metamorphic rocks, (8) modern igneous rocks, (9) 

 old igneous rocks, (10) granite, pegmatite, &.c. The members of 

 the coal series of New South Wales are given substantially as 

 those enumerated by Dana (whose work Jukes had evidently not 

 then seen), but the Wianamatta shales are specially mentioned 

 as separable from the underlying Sydney sandstone. The coal- 

 bearing beds at Western Port and to the west of Geelong are 

 regarded as Palseozoic. The rocks about Port Phillip are referred 

 to a Palaeozoic age, the fossiliferous beds at Brighton to a Tertiary 

 formation, and the volcanic rocks about Melbourne to more recent 

 sub-aerial lavas, whilst the lowlands of Gippsland are considered to 

 be occupied by Tertiary deppsits. The rocks of the Mount Lofty 

 chain, in South Australia, are classed as metamorphic. The Tertiary 

 of the Lower Murray and the Glenelg River he considers to be part 

 of a widespread formation, embracing Adelaide and Port Phillip, 

 but to be of a very modern date, wdiilst that remarkable mural line 

 of sea cliffs extending westward from the head of the Great Aus- 

 tralian Bight is conjectured to be Tertiary, and to stretch far into 

 the interior, and in all probability to join on to Stmt's great central 

 desert of sand and ironstone (a conception of Sturt's). 



MacGillivkay, John. — The last of the maritime surveys under 

 Imperial direction which concerned Australia Avas that conducted 

 by Captain Owen Stanley, of H.M.S. Rattlesnake ; it is noteworthy 

 from the high scientific attainments of its officers. The Com- 

 mander, who was the only son of Dean Stanley, himself an eminent 



