Appallingly under-read in modern times. This inspiring title deserves far more attention than it currently receives. 

First published in 1936. Stock that was kept in London was destroyed by enemy action and a second edition appeared in 1942 with extra content. 

A quality British edition hardback of this celebrated philosophical textbook. Not the Indian paperback frequently offered as a 'bargain'. 

Herbert Roberts practised in the USA and was a student of Stuart Close.

This elucidates the Organon - Invaluable for philosophy students.

Having this in hardback is an advantage as this is a work that merits re-reading and study alongside the Organon - This title can be kept open on the desk while referring to the Organon.