The scent of blood was subtle, detectable only by a vampire like him.
This result is inconsistent with the aether remaining at rest, unless we assume that the dimensions of the moving system depend, though to an extent so small as to be not otherwise detectable, on its orientation with regard to the aether that is streaming through it.
Injuries of the cerebellum, if large, derange the power of executing movements, without producing any detectable derangement of sensation.
In the human subject, often due to streptococci, the process is similar, but the organisms are found especially in the capillaries of the internal organs and may not be detectable in the peripheral circulation during life.
You have picked out a suit, a sharp grey one with barely detectable pinstripes.