200 TlMEHRI. 
The thanks of the Society were tendered to Mr. J. 
Rodvvay for copies of Surveyor's Maps of the Coast Lines 
and Estates of the colony from the River Essequebo to 
the Berbice ; and also to Mr. A. C. L. Campbell for a 
copy of the Society's Rules and Catalogue dated 
1858. 
The Secretary read a letter from Mr. W. P. Abell, 
referring to his paper on the " Causes of Boiler Explo- 
sions", and excusing his absence from the Meeting. 
The paper having been printed in the newspapers of 
the colony was now brought up for discussion, but in 
the absence of the author the matter was postponed. 
The Chairman recommended that it be sent to 
Mr. E. E. H. Francis, the Government Chemist that 
(as suggested by Mr. Abell) he might endeavour to 
find a remedy for the corrosion of Boilers by "Bush" 
waters. 
The Chairman exhibited an Arrow Head, apparently 
made of rock crystal by chipping. He reported it as 
having been found at a depth of five feet in the soil of 
the Puruni river. 
The Secretary moved that " as the experiment of 
opening the Reading Rooms on the two evenings after 
the arrival of the ' Mail' had been unsuccessful in 
attracting visitors, they be closed after the two evenings 
of the coming Mail." He reported that the average of 
attendance had only amounted to three persons on the 
evening after the arrival of the " Mail," and one on the 
following evening. 
Mr. N. D. Davis seconded the motion, which was 
carried unanimously. 
The Secretary announced that Mr. D. Skekel had 
