bo 
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~~ 
Notes on some Rocks and Minerals from New 
Guinea, &c. 
By A. Liversiner, F.R.S., Professor of Chemistry in the 
University of Sydney. 
[Read before the Royal Society of N.S.W., Ist December, 1886.] 
PRELIMINARY NOTICE. 
THE specimens mentioned as having been obtained from the Fly 
River were collected by Signor D’Albertis, and those from Yule 
Island, Gulf of Papua, by the late Captain Onslow 
o information upon this point has been forthcoming ; 
note, 
The fossils were mainly of a Mesozoic sharkte including 
ELE pectens, ammonites, carcharodon teeth, coral, &c., and 
o have been derived from Cretaceous rocks. 
einer D’Albertis states that all the specimens which are not 
otherwise noted are from “~ ated River, in about Lat. 5° 30'S., 
some 250 miles in the interi 
the microscope most of the e grains present on 
n are fairly complete hexagonal mani So 
friable that it can be rubbed down between the fingers. 
ears also have arr been used in fireplaces. They were 
foun m 
yr heavy, ae oe ‘compact ST pebbles, containing 
minute disseminated particles of iron pyrites; the sp. gr. is 
2 2599, The ican of pyrites is very small ; these were found 
