Upper half is Head of Neith (upside down - see alternate flipped image). Lower half is Astarte.

"(. . .) in contrast, is the beautiful, soulless figure of Astarte, goddess of sensuality, veiled in blue, standing upon the crescent, and surrounded by enticing, female figures and prostrate victims."

-- John Singer Sargent, 1916
(Sargent's Own Explanation on murals) 

Pagan Gods Full Image
 

General view of North End, Sargent Hall, Boston Public Library

Sargent Hall
Floor plan    
 

 
Boston Public Library 
 

Notes: 
 

• See Harvard - Sargent Murals at the Boston Public Library (1890 - 1919)
• See the year in review 1894-1895