The internal anatomy, I may remark here, as dissection has since
shown, was almost equally simple.  The greater part of the structure
was the brain, sending enormous nerves to the eyes, ear, and tactile
tentacles.  Besides this were the bulky lungs, into which the mouth
opened, and the heart and its vessels.  The pulmonary distress caused
by the denser atmosphere and greater gravitational attraction was only
too evident in the convulsive movements of the outer skin.