FUNCTIONS OF THE CEKEBELLUM. 383 



the left lobe of the cerebellum, immediately presented " a 

 great disorder in his movements." 



Among the most striking of the cases of disease of the 

 cerebellum, are two observed by Vulpian. 



CASE XII. The first was a woman, forty-nine years of 

 age, in the hospital of la Salpetriere. " All of the move- 

 ments were preserved, but locomotion was most irregular 

 and difficult ; she could only walk in the most lizarre man- 

 ner, resting on a chair which she placed before her at every 

 step, and, in spite of her efforts at equilibration, she often 

 fell." This patient, however, retained great muscular power. 

 On post-mortem examination, " the cortical gray substance 

 of the cerebellum was found entirely atrophied : all the 

 nerve-cells of this layer had disappeared." There was con- 

 siderable reduction in the size of the cerebellum. The cor- 

 pora dentata were perfectly preserved, " showing that these 

 parts, at all events, have but a slight office in coordination." 8 



CASE XIII. The second case presented an old softening, 

 about the size of a hazel-nut, destroying a corresponding 

 amount of the cerebellar substance of one of the hemispheres. 

 The corpus dentatum was completely destroyed. This wom- 

 an " walked well, but it appears nevertheless that she vacil- 

 lated very slightly in her gait, without, however, a tendency 

 to fall." 3 



"We have thus cited quite a number of cases of disease 

 confined to the cerebellum, in which there was marked dis- 

 turbance in the muscular movements ; but there are others, 

 in which the movements were unaffected. As an example 

 of the latter, we may refer to a case cited from Bouvier, by 

 Prof. Hammond. 



CASE XIY. In this case, the movements of the limbs 

 were all preserved. On post-mortem examination, there 

 was found an abscess involving the two outer thirds of the 



1 LUSSAXA, Lemons sur les fonctions du cervellet. Journal de la physiologic, 

 Paris, 1862, tome v., p. 429. 



3 VULPIAN, Systeme ncrveiix, Paris, 1866, p. 629. 3 Op. tit., p. 632. 



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