We propose to follow up our observations of classical novae in the first
round of ISO observations by (i) following the evolution of the recent
novae V705 Cas and V1974 Cyg, (ii) observing the shell of the old nova DQ
Her, (iii) obtaining more detailed observations of the old (1967) nova HR
Del and (iv) investigating the environment of the GK Per-like nova V732
Sgr. As a result we will learn for the first time about the evolution of
the fine structure line spectrum of novae, and about the pre-nova
evolution of nova binary systems.