VETERINARY OPHTHALMOLOGY. 



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our efforts and we are astonished and pleased with our 

 ability to locate the disc and study its condition at will. 

 We cannot tell our patients to look upward, down- 



ward, to the right, to the left, and thus bring into the 

 field each and all portions of the fundus. Therefore 

 we do the see-sawing, and, having gotten the focus, 

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