The nose is elongated with nose-paste.
The groundwork of No. 3 is used. The shadows and wrinkles are of lake mixed with a little blue. The high lights are of pale yellow. The eyebrows are of grey made by mixing black and white paint. The eyelashes are thickly coated with white.
The face is treated with very light powder.
The spectacles, unkempt hair and velvet cap, all give characteristic touches.
Particular attention is called to the hands. They are shadowed at all spaces that occur between the bones with a mixture of lake and brown. Veins are outlined in blue and high lights on the bones and veins are accentuated with pale yellow.
THE PROFESSOR
I caught it myself. I could dance for joy. It bit me on the wrist. I watched it suck my blood. I let it quietly feed, then I put a little glass over it and held it down until it was dead.
See I have a ring upon my arm. I'll show you its sting under a microscope.