Lion Books, is a 1950s Japanese manga series by Osamu Tezuka, the same company published "Lion Books II" in "Weekly Shōnen Jump", a weekly "shōnen" manga anthology published in Japan by which organization, under the "Jump" line of magazines? 
Lion Books:  It was published by Shueisha in the "Omoshiro Book" as a supplement. Weekly Shōnen Jump: Weekly Shōnen Jump (Japanese: 週刊少年ジャンプ , Hepburn: Shūkan Shōnen Janpu , stylized in English as "WEEKLY JUMP") is a weekly "shōnen" manga anthology published in Japan by Shueisha under the "Jump" line of magazines.
Shueisha