Pokémon Power Volume 1 (August 1998)

I remember some kid at my summer program reading this back when it was blowing up.  I only remember the Pokemon Times part, I thought that was completely different from Pokemon Power.

Edit: On page 10 it says you can trade a "Kung-Foo" for a "Spectre".  Not only were these the prerelease names for Machoke and Haunter, those were only in the Japanese Blue version.  It's obvious they were working with a beta while writing this ("The Brock wants to fight!").