Completism: Doctor Who

I've made two grisly discoveries today - the first a dead sparrow, the second how many Target novelisations I am adrift. I know I had The Cave Monsters and The Sea Devils, and I remember reading Androids of Tara on the bus, so I wonder if somewhere I have a box that has a pile of Pertwee and Baker era books in. Quite where that is, I do not know.

I simply don't believe I don't have these or have given them away or lent them. I wonder if I had them when I last tried to catalogue them - but as to where I've put them... I've picked up five because these are important title but I will hold off pre-1984 titles
But:

( Cut for tedium )