This is the Journal of the Society of Genealogists and records three more Hertfordshire books (Pevsner, The Buildings of England - Hertfordshire, 1953 edition; Evans, Pagent of Letchworth 1903-1914; Lewer, The Lea Valley Footpath Guide) added to their extensive library.
It has the usual interesting papers - although none are specifically linked to Hertfordshire. However I am sure that I will find the information in Tracing Anglican Clergy ancestors online useful.
There is also a special ticket rate for members at the Who Do You Think You Are? event in London on 24-26 February and the magazine gives details of the Society's involvement.