EXPERIMENTS ON MIMOSA. 113 



tracings. I have never found such compound 

 tracings in tremors as in paralysis agitans. 



To prove these points with certainty, numerous 

 tracings from many cases would have to be com- 

 pared. 



As to the treatment of the class of children 

 referred to, the following experiments are very 

 suggestive, and the analogy to the case of children 



Fig. 14. Finger-tracings in chorea. The twitching movements are 

 compound. 



hardly appears to require verbal description. Mr. 

 M. Voss, of Streatham, has kindly communicated to 

 me the results of his investigations. 



Three years ago, some seed of the sensitive plant 

 (Mimosa pudica) was set to grow, and at a moist 

 heat of about 90 Fahr. it soon germinated. Before 

 the compound foliage growth had commenced, the 

 seedlings were potted off into different earths and 

 sand. Those planted in a soil of two parts of 

 decayed vegetable mould to one of sand grew more 



I 



