NOTES ON A COLLECTION OF TERTIARY LIMESTONES. 
Note ON THE AGE OF THE BepDs. 
The paleontological evidence of the foregoing limestone fossils 
strongly supports the idea of their Janjukian age. Therefore, 
from a physiographic stand-point, the King Island limestone beds 
were presumably continuous with those portions of the old sea-bed 
now represented by the Bird Rock Cliffs, the fossiliferous shell-beds 
of Table Cape, Tasmania, and the lower beds at Aldinga, South 
Australia. Not the least interesting fact brought out by the present 
examination of the King Island fossils is the occurrence in this fauna 
of two species of mollusca which have hitherto been known almost 
exclusively from the lower Aldinga beds of South Australia, thus show- 
ing a strong affinity in its facies with the fossils of that area. 
Although the present list of fossils is not so extensive for a complete 
comparison with other southern Australian horizons as could be desired, 
yet the evidence before us is fairly conclusive, since the already- 
known forms recorded here have all—excepting one doubtful poly- 
zoan, Which, however, is found living—been previously found in 
either the Table Cape beds, the Spring Creek series, or the lower 
Aldingan strata. Further than this, some are peculiar to the 
Janjukian group. 
The correlation of the lower Aldingan beds with normal Jan- 
jukian strata is by no means new, since this relationship was long 
ago pointed out by Messrs. Tate and Dennant* in dealing with the 
Cape Otway series, also Janjukian. Those authors, however, in- 
cluded both the upper and lower beds at Aldinga which, as Messrs. 
Hall and Pritchard rightly point out,7 belong to distinct stages. 
The first-named authors, in their second paper on the “ Correlation 
of the Marine Tertiaries of Australia,” noted (loc. cit.) “the com- 
paratively large proportion of Aldingan species ” in the Cape Otway 
section. “ Thus of the forty Aldinga species present at Cape Otway, 
eighteen are restricted to these two sets of beds,” ‘‘ whilst five of 
the species indicated are common also to the Spring Creek Fauna.” 
In my examination of this collection I am under obligations to 
Dr. G. B. Pritchard, F.G.S., and Mr. C. M. Maplestone for helpful 
suggestions regarding the mollusca and polyzoa respectively. 
Note oN THE Dune Sanp or Kine Istanp.{ 
In addition to the previously described limestone specimens, Mr. 
Kershaw also handed me for examination a sample of the dune 
sand from Surprise Bay, King Island. 
* Trans. R. Soc., South Australia, vol. xix., 1895, p. 110. 
+ Proc. R. Soc., Victoria, vol. xiv. (N.S.), pt. ii., 1902, p. 79. 
¢ Since writing this note (May, 1909), Mr. Debenham (op. supra cit. pp. 564, 565) has 
described the physical and chemical characters of the sand dunes of King Island, and has 
given a chemical analysis of the sand. 
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