YEATS, W.B.
 
The first UK edition: The Cutting of An Agate. Published in London by Macmillan and Co, 1919.
 
Description
 
Here with connected notes, inscribed and signed by Yeats in black ink on paper.
Original blue cloth on boards; with an attractive design and lettering in gilt by Thomas Sturge Moore.
Binding tight and the spine is square. Name plate present on inside front cover; Clean throughout, excepting only a little rubbing to the extremities and head.
First edition, first published in the UK in 1919, some 7 years after the true first, US edition; and both thus differ considerably.
The notes are approximate extracts from the text, in Yeats' hand and signed at the top; likely thus related in some way to the alteration of the 1912 US edition. 
These extracts are of Yeats' meditation on the works of Homer, Blake and Spencer in particular, who were profound influence on Yeats.
Remarkably there are spelling errors contained in the notes. They are testament to the Yeats' genius. It had been documented, especially in recent years, that Yeats did have a form of dyslexia. This made his early studies difficult-going. Yeats himself once wrote explaining this: "I had to give a while evening's work to one lesson". And:" my father had come to think I had not all my faculties". 
Line 6 of these notes reads, "expericence", and in the printed text is corrected.
This made for arduous revisions of his work. Several research papers have posthumously determined also difficulties with spelling, memory and self-concept. But all of those obstacles of life were overcome by Yeats.  This is therefore a unique window into a magnificent intellect. An intellect of a man whose schoolwork was reported "very poor" and yet who went on to win The Nobel Prize in literature in 1923.