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From Orme Square, a lean-faced, unkempt and haggard waif, I drifted to Great Orme's Head and back again. Senile dementia had already laid its spectral clutch upon my wizened cerebellum when I was rescued by some kindly people, who tell me that they found me scorching down Hays Hill on a cushion-tired ordinary.
The extent of cerebral cavity behind 'c', which is a perpendicular erected on 'b' at the point where the tentorium is attached posteriorly, indicates the degree to which the cerebrum overlaps the cerebellum the space occupied by which is roughly indicated by the dark shading.
It is just the reverse in the higher Vertebrates, in which the first and third sections, the cerebrum and cerebellum, are exceptionally developed; while the middle brain and after brain remain small. The corpora quadrigemina are mostly covered by the cerebrum, and the oblongata by the cerebellum. But we find a number of stages of development within the higher Vertebrates themselves.
The Dominie opened his eyes, stared at the deck and carlines above him, then at the cupboard by his side; lastly, he looked at and recognised me. "Eheu, Jacobe! where am I? And what is that which presses upon my brain? What is it so loadeth my cerebellum, even as if it were lead? My memory where is it? Let me recall my scattered senses." Here the Dominie was silent for some time.
Hind-brain, cerebellum, medulla oblongata. d. Eye. e. Ear. f. First visceral arch. g. Second visceral arch. H. Vertebral columns and muscles in process of development. i. Anterior extremities. K. Posterior extremities. Man is developed from an ovule, about the 125th of an inch in diameter, which differs in no respect from the ovules of other animals.
The impressions received by the cerebrum and cerebellum are waves of molecular disturbance sent up along centripetal nerves from the lower centres, and presently drafted off along centrifugal nerves back to the lower centres, thus causing the myriad movements which make up our active life.
"The furious Risingh, in despite of the maxim, cherished by all true knights, that 'fair play is a jewel, hastened to take advantage of the hero's fall; but, as he stooped to give a fatal blow, Peter Stuyvesant dealt him a thwack over the sconce with his wooden leg, which set a chime of bells ringing triple bob-majors in his cerebellum.
The smoke of these villainous little pipes, continually ascending in a cloud about the nose, penetrated into and befogged the cerebellum, dried up all the kindly moisture of the brain, and rendered the people who used them as vaporish and testy as the governor himself.
Priapism may also develop spontaneously at a later period, and is then due to central irritation from extravasation into the substance of the cord, or to some reflex cause. It may also occur from simple concussion, as shown by a case reported by Le Gros Clark. Pressure on the cerebellum is supposed to account for cases of priapism observed in executions and suicides by hanging.
"Do you feel shooting pains in the cerebellum, near the apex of the cosmopolitan?" inquired the doctor. "Surest thing you know," I said. "Have you a buzzing in the ears, and a confused sound like distant laughter in the panatella?" he asked. "It's a cinch, Doc," I said. "Do you feel a roaring in the cornucopia with a tickling sensation in the diaphragm?" he asked. "Right again," I whispered.
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