'Very well. Now! As we have learned by doing appalling things to stray dogs, the heart accepts blood returning from organs, such as the brain, through veins, such as the jugular. It expels blood toward these organs through arteries, such as the carotid. Do you remember what happened when Mr. Hooke cross-plumbed the mastiff, and connected his jugular to his carotid? And don't tell me that the splice broke and sprayed blood all around – this I remember.'