234 O. U. VUNWILLER. 
permissible. Distilled water was used and its specific con- 
ductivity was measured and found to be 3°7 x 10 at 18°8° O. 
These results show no indication whatever of the effect 
observed by Thwing at 4° C. With the possible exception 
of Fig. 5, all the curves are definitely lower at 4° than at 
0°. According to Thwing, the dielectric constant at 0° is 
79°46, and at 4° 85°20, i.e., it increases by 7°2%; now, in 
Fig.3, the capacity at 0° was 16°39, and if it were to increase 
by 7°2/ it would be 17°57 at 4°; an inspection of the curve 
shows that any change of that order could not fail to be 
detected. 
In conclusion, I desire to express my best thanks to 
Professor Pollock for many valuable suggestions, and for 
his continued encouragement during the work. 
THE NARRABURRA METEORITE. 
By A. LIVERSIDGE, LL.D., F.R.S., Hon. F.R.S.E., 
Professor of Chemistry in the University of Sydney. 
[With Plates XI.-XXII.] 
[Read before the Royal Society of N. S. Wales, September 2, 1903.] 
Discovery.— Mr. Russell, c.M.c., Government Astronomer 
for New South Wales, states’ that this siderite was found 
in 1885 by Mr. O’Brien; it was lying on a hard and stony 
surface at a place on Yeo Yeo or Narraburra Creek, about 
twelve miles east of Temora, in Lat. 34° 10'S. and 147° 43’ H. 
Mr. O’Brien gave the meteorite to Mr. Patrick Harold of 
Mount Hope near Cootamundra, who presented it to Mr. 
Russell, on March 30th, 1890. 
1 Journ. Roy. Soc. N.S.W., Juue 4th, 1900. 
