Historical Speckled Tiger Report?

I've just posted a brief article in BioFortean Review concerning a 1930s mystery cat from British Guiana (now Guyana) with some similarities to the Peruvian cryptid, the Speckled Tiger, noted in investigations by Peter J. Hocking. Article is here.

I also see that Eberhart (Mysterious Creatures) suggests another reference for this cryptid: Stanley E. Brock, Hunting in the Wilderness, 1963. I'd be interested in a summary of this book's relevance...