Right, but I don' think there is any indication it was written for kids at the time.
Well...
When he wrote it, Burroughs still had asperations of being a businessman - he published it because he was having issues supporting his wife and two kids. The work was first published under a pen name (Normal Bean, which the publisher "corrected" to Norman Bean), because Burroughs himself thought it was kind of childish and would reflect poorly on him with business folks if they knew he wrote it.
Burroughs wrote it, but he didn't start with a high opinion of the genre - it was a way to make a few bucks.








