Geological Society. 73 
Action of Anhydrous Acetic Acid on Glycol.—Formation of Mono- 
acetate of Glycol. 
A mixture of equivalent quantities of anhydrous acetic acid and 
glycol was heated in a sealed tube for several hours at a temperature 
not exceeding 170°C. On opening the tube, and submitting its 
contents to distillation, it was observed that the mercury remained 
stationary for a considerable time at about 120°, the point of ebulli- 
tion of glacial acetic acid, and then rose rapidly to 180°, between 
which and 186° the remainder of the liquid passed over. 
This was analysed, and proved to be pure monoacetate of glycol. 
Theory. Experiment. 
C,....46°15 46-02 
H,.... 7°69 7°80 
O,.... 46°16 F 
100°00 
The following equation will explain the reaction which takes place 
between the acid and the glycol :— 
C,H 
C,H WO. | oe C, H, 0, 
He} 048158: 0.=0:1h0, Lo.+ “i jo. 
The foregoing experiments were performed in the laboratory of 
M. Wurtz. 
GEOLOGICAL SOCIETY. 
[Continued from vol. xviii. p. 479.] 
November 30, 1859.—Prof. John Phillips, President, in the Chair. 
The following communications were read :— 
1. “On some Bronze Relics from an Auriferous Sand in Siberia.” 
By T. W. Atkinson, Esq., F.G.S. 
During the author’s stay at the gold-mine on the River Shargan, 
in Siberia (Lat, 59° 30’ N. and Long. 96° 10! E.) in August 1851, 
some fragments of worked bronze were dug up by the workmen, at 
a depth of 14 feet 8 inches below the surface, from a bed of sand in 
which gold-nuggets occur. ‘This sand rests on the rock, and is 
covered by beds of gravel and sand, overlain by 2 feet of vegetable 
soil. The fragments appear to have belonged either to a bracelet 
or to some horse-trappings. 
2. “On the Volcanic Country of Auckland, New Zealand.” By 
Charles Heaphy, Esq. Communicated by the President. 
The isthmus-like district of Auckland and its neighbourhood, 
described by Mr. Heaphy as a basin of Tertiary deposits, is bordered 
