CI REB] ! Li M Wi« llli I Mil !!:• I I 



canal could be compressed and currents Bel up in tl 

 Pound tli.it these currents alv. animal to mi 



eyes in the plane v\' the canal thai was I timulated and in 



of the currenl of endolj mph. 



Finally, visual impressions supply much of the inform 

 linn requires, the close association of the movemi 



cerebellar and labyrinthine disturbai a b< 



tagmus already described in i nection with B 



upon tliis association. The symptoms and sent I 

 produced by rotation <>!' the body, or by unusual m< 

 (if ,-i boat, are no <1< »i il >t due to tin' irregular and in 

 rinthine s^ns^ti^ns which they excite. 



In ;i word, then, tin- function of the cerebellun 

 ceptive impulses from the body ; 1 1 < • 1 1 «_r with labyri 

 pressions and to integrate and develop from them imp 

 being transmitted to tin' cerebral and other nei 

 muscular movements, so coordinate the n< 

 when muscular movemenl occurs, it does bo in relationship to th< 

 position of tin' animal and in the mosl efficient way I 

 for which the movement \\;is made. 'I rebellum 



of tli»> proprioceptive Bystem. 



THE ASSOCIATION BETWEEN THE EYE MOVEMENTS AND THE 



SEMICIRCULAR CANALS 



The close association between the eye m 



canals is indicated by tl ccurrence of nystagmus \\1 



lated either electrically or by means "t' mod< 



mi the membrana t\ mpani. The latter m< tl 



Btyled the caloric, and is employed in the r\;m 



the aviation sen ice. Its value over t ; 



the body and the index tesl aln 



that it enables us to ti ibular appai 



Water a1 68 P. i-^ all run throu 



ternal auditor} canal, fi 

 aboul "• feel above the l ead, which inwhili 



forward. In aboul 10 s< 

 the jerk to the side opp i ti" 1 douch< 



dizziness complained 

 mediately afterward the head is incl 

 from the perpendicular, when 

 posite to the douched ear should 



