154 E. CHEEL. 
231. Heward, R. 
Biographical sketch of the late Allan Cunningham, Esq. 
Hooker’s London Journal of Botany, Vol. 1., p. 121(1842). 
232. Krempelhuber, Dr. A. von. (See 6, p. 338.) 
233. Miiller, Dr. Jean. 
Lich. Beit , Nos. 397, 558, 562, 805, 1065, 1167, 1234, 1236. 
— Flora, (1882 — 1888). 
234. Cheel, Edwin. 
J. H. Maiden’s Flora of Norfolk Island.—Proe. Zinn. Soc. 
N.S.W., Vol. xxviit, pp. 741 - 744, (1903). 
ANALYSES oF CHOCOLATE SHALE anp or TUFACH- 
OUS SANDSTONE FrRoM THE NARRABEEN SERIES. 
By 8. G. WALTON, Junior Demonstrator, University of 
Sydney. With a Petrological Description by 
R. S. BONNEY, B.A. 
(Communicated by Professor LIVERSIDGE, F.R.S.) 
[Read before the Royal Society of N. S. Wales, December 5, 1906.] 
THE following analyses were made in the Chemical Labor- 
atory of the University of Sydney, at the request of Prof. 
Liversidge, in connection with an investigation upon the 
distribution of gold in small quantities in rocks and natural 
waters. The weathered chocolate shale from Long Reef, 
near Manly was selected for examination because it showed 
stains of copper. The specimens were kindly supplied by 
Prof. David, F.R.s. The Tufaceous Sandstone from Rose 
Bay was obtained from a bore at a depth of 1900 feet, and 
the Chocolate Shale from Long Reef near Manly. 
