Tommy, here's Russell explaining the vertical scale to Lake Karrinyup earlier that year. I think he left it off his plans quite regularly so the work wouldn't tighten up in the field.
The greens shown are very large and consequently will be more to water and cut but large greens allow large and bold undulations and will repay in pleasure more than the extra cost.
The plans of the greens are to scale but the elevations shown are meant to be a general guide only and thus no vertical scale is given.
The plans should be carried out more or less exactly with variations of only a few yards being permissible. Formation work is best done with a scoop and hazards formed in this way and left rough and unfinished as possible always look more natural.
I would advise that no green should have a final slope exceeding 1 in 14 or a local slope greater than 1 in 7 and that many practically flat places left for cutting the hole in. A good rule for this is that one should not have to aim outside the cup with a fairly hit three foot putt. All mounds however should be grassed and should be easily cut with the mower.
He was a big fan of Robert Hunter's book and I think the 3 foot putt thing comes from that. The stationary he did these types of sketches on seems to be modeled on Mackenzie's.
It is essential if the full enjoyment is to be got out of the game that all artificial hazards and formation work be made as natural as possible. Exceedingly good examples of this are to be found in "Robert Hunter's" book "The Links".
Russell in same Lake Karrinyup report as above (Mar. 27 1927).
These days with Dr. MacKenzie here, practically all our prominent golfers are discussing golf courses, golf holes and golf architecture generally. Everywhere one goes, someone is sketching what he considers to be an ideal hole, and explaining just what the Doctor does to bring about his golfing transformations. Robert Hunter's great book, with its exquisite illustrations of greens and holes and bunkers and such like, has been bought up so ravenously that it is now impossible to procure a copy, and groups pouring over it may be seen in every club house. Alex Russell, the former open champion, has been so intrigued by some of the illustrations, particularly of Pine Valley course in the USA, that he will now not be happy until he plays over some of the courses.
"Pants For Pine Valley", Melbourne Herald (Nov. 3 1926).