John Burroughs After Onions
"Thoreau's quality is very penetrating and contagious; reading him is like eating onions - one must look out or the flavor will reach his own page. But my current is as strong in my channel as Thoreau's in his."
PageBoy wonders which metaphor is worse: the onion or the current. What does the eating of onions metaphor mean actually? How can you "look out" for something that you've just put in your mouth? Does "the page" here refer to some sort of foul bowel situation? And does it have anything to do with his "current" being so strong in his "channel?"