160 Transactions of the Royal Microscopical Society. 
One of the first objects observed was the scales of the common 
Lepisma saccharina (the active “ window fish ” of our childhood). 
The late Richard Beck announced that the markings on the lower 
surface of this scale consisted entirely of fan-like radiations starting 
from the quill — a structure by some considered illusory ; but with 
axial vision thus refracted obliquely, the accuracy of this careful 
observer was confirmed, as these radiating lines were shown very 
distinctly, as if graven in black and white. 
