80 GENEKAL ANALYSIS. 



SECTION H. 



Motory Organs. 



251. MOTIONS of several different kinds are required 

 in the Body. 



252. CHEMICAL AFFINITY AND CAPILLARY ATTRAC- 

 TION MUST OPERATE IN THE BODY as well as out of it, and 

 produce movements in the particles over which they ex- 

 ert their sway. 



253. THE CILIA OF THE CILIATED CELLS MUST PER- 

 FORM their wonderful though unobtrusive movements 

 at the surfaces where they are needed, all within the 

 limits of microscopic observation. 



FIG. 77. Fig. 77 represents 2, cilia, very minute extensions 



of the surface ends of four cells, 1, very much magni- 

 fied. The cilia have an exceedingly rapid vibratory 

 motion, tending to move along any substance resting 

 on them. The cause of their motion is not at all under- 

 stood, nor even conjectured. 4, other cells, growing to 

 take the place of 1. 5, basement membrane, from which 

 4 take their rise. 6, sub-tissue, containing Blood tubes, 

 &-c. 3, nucleus of cells. 



254. ELASTICITY COMES INTO PLAY very frequently 

 in the production of motion, and without it the body 

 could not exist. 



255. THE MOTIONS CAUSED BY AFFINITY, ATTRAC- 

 TION, CILIA, AND ELASTICITY, are called non-nervous, be- 

 cause they are not directly influenced by nerves, and of 

 course are not under the direct control of the mind. 



256. THE MIND REQUIRES the means of producing 

 motion at its option in various parts of the body. 



257. THE REQUIREMENT OF THE MIND is THREE- 

 FOLD. 1st. Various parts of the Body are to exhibit 

 motions at the option of the mind. 2d. It follows that 

 they must be connected with the centre of the Body, 

 where the mind has been shown to be; and, 3d. The 



251. What does the Body require? 252 Does? 253. What must ? Describe 

 Fig. 77. 254. When does ? 255. What called ? 256. What does ? 257. What T 



