From the Beginning:
* "But beyond this was the big blue bay, while still beyond bore the beautiful bluff" (Chapter 1) - This exemplifies the use of alliteration for emphasis and sound effect, evoking the vastness and beauty of the setting.
* "Suddenly she sprang straight up, her staring eyes seeing, not sleeping." (Chapter 2) - This alliteration emphasizes the sudden and startling nature of the dog's awakening.
From the Middle:
* "Through it all there was the thrill of the time-long tradition, the thrill of the thousand thousand things that thereby taught him." (Chapter 5) - This repetition of the "t" sound, more than simply alliteration, creates a hypnotic effect, conveying the powerful influence of ancestral instincts.
* "With a wail which went up unto the wilderness, which shook the woods and started wolf hounds from sleep, Buck turned and rushed toward the deep forest." (Chapter 6) - The alliteration here adds to the urgency and drama of Buck's escape.
Beyond Alliteration:
* "For the sake of comfort, the former custom of tying dogs to stacks had been discarded." (Chapter 3) - While not technically alliteration, this repetition of consonants creates a rhythm** and emphasizes the change in custom.
These are just a few examples. You can find more instances of alliteration in *The Call of the Wild*, especially if you pay attention to the descriptions of nature, the animals, and the sounds of the wilderness.
It's important to remember that alliteration is not used extensively in this novel. It's more of a subtle and occasional device used to enhance the emotional impact and rhythmic flow of Jack London's prose.