That is the most complete cross-section I have seen of Robert Burley's work on this subject.
My father still has some prints he did in one of the employee darkrooms at Kodak Toronto - before he transferred from there in 1961.
I don't think he will want to see those photos
“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2