072 Correspondence—Mr. I. Lloyd. 
remarkably successful, and very useful, especially if reports have been 
published of their geological details. The class-lectures were soon 
discontinued; but it is doubtful if they would not be useful still. 
The intercommunication with Societies and Field-clubs in the 
Counties has often been recommended, and to a great degree effected ; 
but the re-institution of Honorary Local Secretaries, and with them 
the formation of local geological committees in communication with 
the Association, was recommended. The high value always and 
rightly placed by the Associates on the presence of ladies at the 
meetings was duly mentioned ; and, to insure their company in the 
field as well as in town, it was suggested that special excursions, free 
from mountainous and rough ground, should be periodically arranged. 
The high esteem in which the Association is held by home and foreign 
geologists was not forgotten ; and the Members were congratulated 
on the success of their Society, and advised to keep to the lines and 
precepts of their founders.—Mining Journal. 
CORRESPONDENCE. 
fit 0s Sa ses 
MORTERATSCH GLACIER, ENGADINE. 
Str,—In the month of August, 1875, a friend and I agreed to get an 
approximate measurement of the rate of movement of this glacier. 
With this object we walked from the glacier snout, along the moun- 
tain side, on the left, till we saw a large boulder on the medial 
moraine, and also a rock in situ, on the mountain side on the right, 
at about the same level. We then found a spot on the left side, on 
looking from which we got the boulder and the rock én situ, in line. 
As these were of considerable size (the boulder being about 80 cubic 
feet), we pointed a strong line on each of them, and set up a post 
at the stand-point. This was about 3 furlongs above the snout of 
the glacier. Here the glacier is about half a mile wide, the boulder 
to the large medial moraine being 500 yards from the left side, or 
stand-point. 
To estimate the movement, one person went on the moraine, near 
the boulder, while another was posted at the stand-point, and the 
latter signalled to the former to move to the right, or left, till he got 
to a spot which lined with the rock in situ. This was marked, and 
the distance to the boulder was measured. ss 
In 1875, three observations were taken, two at intervals of 10 
days and one at 24 days. 
My frend has not been in the Engadine since. I have been here 
every year since. In 1877, 1879, and this year, I have measured 
the progress of the boulder, in the manner described. 
The result is as follows :— 
The average daily movement, in 2 years, Aug. 1875 to Aug. 1877, was 1-48 in. 
: in 2 years, Aug. 1877 to Aug. 1879, was 1°22 in. 
in 1 yr. and 9 days, Aug. 1879 to Aug. 1880, was 1°28 in. 
in 6 yrs. and 9 days, Aug. 1875 to Aug. 1880, was 1°34 in. 
in 44 days, 7th Aug. 1875 to 20th Sept. 1875, was 2-07 in. 
During the 5 years the glacier has diminished very considerably, 
especially in its depth. This may account for the slower movement 
