1099 



ill a more or less large circle constantly towards the sound side. 

 When the deviation occurred in a slight degree, then the animal 

 only showed a deviation of its gait directed to the sound side. 



The cause of these differences I think I may find in tiie incom- 

 pleteness of the operations. When these succeed according our 

 wish, then the deviation will be very distinct. When the operation 

 falls out less well, then the circus gait too will not come^to full 

 development. 



As is the case with most of this kind of operations, the deviation 

 soon grew less and compensation therefore soon appeared. The 

 distinctly marked circus gait changed into a curved line walk and 

 ended towards a walk deviating to the sound side. This last 

 symptom remained during a long time. 



Yet the animal could manage, although the circus gait was 

 distinctly pronounced, to reach a certain point. As it however 

 was inclined to deviate towards the sound side, it was obliged to 

 try this in a particular way. This is clearly seen from the drawing- 

 after a photograph (figure 1) of a gait line. The animal is standing 

 near ^4 and intends to go to B, where a piece of meat is lying. 

 As it is inclined to deviate towards the left, the sound side, and 

 in this way would never reach its aim, it adducts its riylit hind 

 leg strongly underneath its trunk and when the left hind 

 leg then is lifted, the animals throws, by means of the strongly 

 adducted right hind leg, the whole of the hind trunk towards the 

 left, and therefore the head becomes directed more to the right, 

 towards the aim. This is distinctly seen, just above the arrow, which 

 indicates the intended direction of movement. /. notes the place 

 where the R fore leg is placed. The tl hind leg is strongly adducted 

 underneath the trunk towards //. As it, with that leg, throws the 

 whole of its hind trunk towards the left, then the long-axis of the- 

 trunk is indicated by drawing a line between the two right legs, 

 therefore /. and //., in which case the animal keeps looking at the 

 aim. With the next step the R fore leg is placed near /.. and the 

 R hind leg is strongly adducted, towards 11. . The long axis is found 

 between 1.. and //.., and therefore the head is again turned towards 

 B. Continuing in this way, thus adducting the right hind leg strongly 

 underneath the trunk, the animal at length reaches its aim along 

 a curved line. It happens now and then that the cat, when adducting 

 the R hind leg too much underneath the trunk, loses its equilibrium 

 and tumbles to the right, because it misses its support on that side 

 of its hind trunk. 



Moreover it is remarkable that when the cat walks aimlessly 



