Australasian (Melbourne, Vic.: 1864 - 1946), Saturday 20 March 1937, page 21
Stud Notes by Sterling
MUTABLE
WHEN Mutable won the Australian Cup brilliantly on Saturday, March 6, most people were surprised that a son of Drake would be able to stay out a soundly run two miles and a quarter. Drake has been better known as a sire of sprinters rather than stayers, but in this case Mutable has proved the exception. He really is a soundly bred horse, and no doubt he obtains his staying blood from his dam, Varium. Bred
