12 MOVEMENT 



and one. In the final stage, the horse is momentarily 

 poised in the air before it again comes down on the 

 left hind foot. 



The Record of the Fingering of a Pianist. — The 

 facility with which chronography can be applied to 

 the most complicated movements of irregular sequence 

 and duration has encouraged an attempt to record 

 movements so complex as to defy the observation of 

 the most practised, namely, the movements of the 

 fingers of a pianist on the keyboard of his instrument. 



Under each note on the keyboard of a harmonium 

 is placed a tiny pair of bellows, and each of the latter 

 is in communication by means of a special tube with 



Fir,. 9.— Triple-beat gallop. A indicates the exact position of the three beats. 

 B indicates the number of feet by u Licit the hoise is supported at any particular 

 moment during a triple-beat gallop. 



a corresponding pair, which in turn are connected 



with a tracing needle. The series of needles are placed 



in a row, and are arranged in the order in which the 



different notes succeed one another in ordinary music, 



namely, in an ascending scale of musical pitch. All 



these needles trace their record on a strip of smoked 



paper which is moved by clockwork. Finally, a comb 



with five teeth inscribes the stave on which the various 



notes are written and recognized by their respective 



positions in relation to it. The duration of the sound 



is* expressed by the length of the stroke. Semitones 



are distinguished by two tiny parallel strokes, instead 



of a single broad one.* 



* This method of notation has been made use of by M. V. Tatin in 

 a very able maimer. 



