 By 1853 , the number of members had grown to 60 . The Society 's medical collections were donated to the Warren Anatomical Museum around 1870 , while its library was absorbed into the Boston Medical Library in 1875 . Membership had grown again by 1876 , reaching 79 regular members . In 1878 the Society moved to a building on Boylston Street , the former home of Samuel Gridley Howe , after it was purchased by the Boston Medical Library Association . 
