Page 524-525 & 552: "TRAINING THE FARM DOG
THE PERSONAL EQUATION AN IMPORTANT ONE - GOOD TRAINERS ARE BORN, NOT MADE - THE WELL TRAINED DOG A VALUABLE ASSISTANT

The ability to train a dog successfully may be truly called an art, for it is possessed by few and it is difficult of development.  ... Dogs are kept on farms for many different purposes, but this article will deal only with training the shepherd dog or cattle dog, for without a good education such an animal is useless.
Most farms have their two or three dogs, usually of Collie blood, but a well-trained sheep or cattle dog is a rarity, for although the dogs possess the innate intelligence, their owners seldom have the inclination or take the time to convert them from useless animals into valuable assistants.
To develop a good sheep dog it is essential that you start with a dog of a working breed if possible one of a strain of well-trained dogs, for this trait work is largely hereditary. ...
There are several varieties of dogs that can be used for working stock on the farm. Of these probably the best known is the Collie, although the old English Sheep Dog, the German Shepherd Dog, the Shetland Collie and the Australian Kelpie are useful breeds and popular in some sections. ...
In England, Scotland, France, and especially in Australia, the sheep dog is taken very seriously and it is only in America that he is made a plaything. ..."

I only could identify two of the above published Shelties: Lerwick Rex in the centre and to the right Lerwick Bess.

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