My lamp is guttering. Candle stubs are smoking.

Was it thirty years ago, in Milan, that I understood? Windows were open and heat-lightning was flickering beyond my studio. My anatomy drawings were spread on the corner table. Then I saw. Saw clearly. Knew. Saw that man’s blood resembles the tides of the sea; from the seat of the heart it circulated throughout the body. Let an artery or vein burst or suffer injury and blood raced to the in­jured spot. Incessant currents of the blood, passing through the arteries and veins, caused them to thicken and become callous. So, I had additional proof of circulation. Each dissection revealed further confirmation of the system. Why was I slow in grasping the obvious?

I have explained my theory to some but was often rebuffed and yet when I told her—using my drawings—she grasped the significance. She understood many things. And when she lay dying there seemed little left for me... I held her hand. Her eyes were closed. Grey eyes. She never spoke. God, how I stumbled down those rat infested stairs, stairs with a cross gouged in each step. Ah, those flooded streets!

Some men of science and art have copies of my first treatise. Some. They hesitate. Resent. Last year I explained circulation to King Francis. He was not interested; he fondled his diamond-studded belt and stared stupidly at me. I must tell Francesco that the treatise is packed in the third trunk—the one with the smashed lock.

I must sequence my drawings:

1 - Skin

2 - Muscles

3 - Tendons

4 - Bones

Indicate effect of emotions, labor, illness, age.