#45 Transition by Iain Banks, reviewed for Interzone. It's by Banks, so you know it's pacy, entertaining, and features a fair helping of gruesome comedy. But the plot is an almighty mess that doesn't come close to beginning to make sense. And why this slipped out without the 'M' is beyond me.
#46 Flowers for Algernon by Daniel Keyes. I re-read this because I'm contributing to a book on film adaptations. Well the film doesn't hold up as well as I remember, but the novel certainly does. This has to be one of the greatest of all sf tragedies.
#47 The Inter-Galactic Playground by Farah Mendlesohn, reviewed for Vector. A critical study of sf for children and young adults, though it is at its liveliest where it is a polemical attack on some of the assumptions made about children's fiction generally.
#48 The Mere Future by Sarah Schulman. Naive, ill-structured, poorly written. If you happen upon the book, give it a miss.
#49 Slaughterhouse 5 by Kurt Vonnegut, another novel read for the film adaptations book, and another novel that holds up really well after all the years, as noted here.
#50 The Infinities by John Banville, which I've already written about here.