Corrected entry: Penley says they is no way of knowing the cause of Jamie's paralysis. The cause should be fairly obvious...Jamie was shot. How could Penley miss that - or is a bullet hole not obvious enough?
Corrected entry: When talking about 'underground trains', the Doctor says that this is 'a little after your time, I think, Victoria'. As Victoria comes from 1866 he's wrong: the first underground line (between Farringdon and Edgware Road) opened in 1863, so Victoria would have been around at the time.
Correction: More of a character error. The Doctor said he "thought" they were after Victoria's time, not that he "knew" they were.
Correction: Jamie was shot with a sonic gun (and a glancing blow at that) not a projectile weapon. So there would be no visible wound and Penley probably doesn't understand the Martian weapons well enough to know what damage they may have done.