REPORT. 
23 
and several valuable donations, belonging to other subjects of 
Antiquarian interest, have been presented. Among the 
most curious of these are the brass symbol of Isis 1 found at 
Aldborough, the ancient Isurium; the arrow-heads of obsidian, 
used by the native Indians before the conquest of Mexico, and 
the images in baked earth from the ancient pyramids and 
temples of Otumba. 2 
The Council have the satisfaction of again reporting, that 
there have been numerous benefactions to the Library. 
The Curator, 3 by a well directed liberality, has himself 
added to it many useful books of scientific reference. The 
Royal Society of Edinburgh, and the Society of Arts, have 
presented copies of their valuable Transactions, the Royal 
Asiatic Society, and the Literary and Antiquarian Society 
of Perth, have conferred a similar obligation. But among 
the many valuable works which distinguish this list of dona¬ 
tions, there is one composed by a resident member of the 
Society 4 , which particularly deserves the notice of the 
Meeting. Too little attention has hitherto been paid in 
this country to the means of communicating the advantages 
of education to the blind, especially in scientific attainments; 
and in the work now alluded to, a successful attempt has 
been made to supply part of that defect, by publishing the 
diagrams of Euclid in a tangible form. 
To the author of this book the Meetings have been 
indebted for many Communications, in which scientific 
1 Presented by Dr. Murray. 2 Presented by Capt. Colquhoun. 
% Eust. Strickland, Esq. 4 The Rev, W. Taylor, 
