88 GENERAL ANALYSIS. 



ined with a microscope, and are simply repeated or mul- 

 tiplied billions of times, and properly arranged to pro- 

 duce the grand result, the Motory Apparatus. 

 Elementary Apparatus. 



SPart of Ganglion, ) t Entire 



Nerve-fibre, > x by billions = -j Motory 



Muscle-cell, ) ( Apparatus. 



304. Inf. IT CANNOT BE DIFFICULT TO COMPRE- 

 HEND the character, necessities, and methods for per- 

 fecting an apparatus so simple in its structure as the 

 Motory. 



305. Ihf. To UNDERSTAND THE MOTORY APPARA- 



Tus is to understand a large part of the body. 



306. THE MOTORY APPARATUS INCLUDES, IN ONE 

 SENSE, a part of the Sensatory, as, for the perfect action 

 of the motory, sensations must be caused. The amount 

 of influence sent down to cause contraction might deter- 

 mine the intended motion, but any opposition would re- 

 quire greater exertion. The sense of Touch must also 

 be a guide in the production of many motions. 



307. Illus. A man who had lost the sense of Touch 

 for two years, when seen by the author, would drop any- 

 thing from his hand except it was under his eye, by 

 which, also, he was obliged to guide his steps, observing 

 when his foot was on the ground. 



308. SEVERAL OF THE SENSATORY GANGLIA ARE 

 doubtless in intimate relation with the Motory Ganglia, 

 influencing them to actions required for the safety or 

 convenience of the different parts of the body. 



309. INFLUENCES CONSTANTLY POUR IN UPON THE 

 MIND through the Sensatory Apparatus, and influences 

 flow out through the Motory. 



310. A COMPLETE CIRCUIT is FORMED by the Sensa- 

 tory and Motory Apparatus, the mind being included on 

 the one hand, and the External World on the other, as 

 follows : 



Write table. 804. What ? 805. is what? 306. What docs ? 807. What 

 eald of ? 808. What said of ? 809. How do ? 810. How ? 



