CSJ Journals Cover Art Gallery: July 2020 BCSJ Vol.93, No.7 Chem.Lett. Vol.49, No.7 BCSJ Vol.93, No.7 Chem.Lett. Vol.49, p. 771 Chem.Lett. Vol.49, p. 789 Chem.Lett. Vol.49, p. 836 Chem.Lett. Vol.49, p. 845