Why do many hunting authorities consider Frederick Courteney Selous to be the greatest big game hunter of all time?

In 1894, famous African big game hunter Frederick Courteney Selous contributed a single short 30-page chapter, "The Lion in South Africa," to the book of collected big game narratives titled "Big Game Hunting." It is this 30-page chapter that has been republished here for the interested reader.

In introducing his writing, Selous states:

"I am often asked, 'Is the lion a dangerous beast, or is he a cur?' This is a difficult question to answer, for not only do lions differ much individually in character-one when encountered showing himself to be an animal of a very cowardly nature, whilst another may prove to be very bold and savage-but it would even seem that the disposition of lions, in general, varies in the different large areas of country over which they range."

About the author:

Frederick Courteney Selous 1851 - 1917 was a British explorer, officer, hunter, and conservationist, famous for his exploits in Southeast Africa. His real-life adventures inspired Sir H. Rider Haggard to create the fictional Allan Quartermain character. Selous was also a friend of Theodore Roosevelt, Cecil Rhodes and Frederick Russell Burnham. He was pre-eminent within a select group of big game hunters that included Abel Chapman and Arthur Henry Neumann. Going to South Africa when he was 19, he travelled from the Cape of Good Hope to Matabeleland, which he reached early in 1872, and where (according to his own account) he was granted permission by Lobengula, King of the Ndebele, to shoot game anywhere in his dominions.