228 ADVANCED LESSONS IN PRACTICAL PHYSIOLOGY 



20. (a) Lesions of the cerebellum in pigeons. 

 (6) Cerebellar defects in man. Nystagmus. 



21. (a) Stimulation of the semicircular canals in the turtle. 

 (6) Lesions of the semicircular canals in pigeons. 



22. Hemiplegia, aphasia, and hemianopsia in man. 



23. The dissociation of the cutaneous sensations. Syringomyelia. 

 Sensory anesthesia. 



24. The accommodation of the eye of the frog, turtle, and fish. 



25. (a) Large demonstration ophthalmoscope. 



(6) Astigmatism determined by means of the ophthalmotonom- 

 eter of Helmholtz. 



26. Myopia and hypermetropia displayed by means of a large 

 Kiihne's artificial eye. 



27. Fluoroscopic observation of the movements of the stomach and 

 intestines in a mammal. 



28. Removal of the thyroid and parathyroid bodies. 



29. Removal of the suprarenal bodies. 



30. (a) Dog with gastric fistula. 



(6) Diffusion demonstrated with the help of the apparatus de- 

 scribed by Abel. 



