SYSTEMATIC ANALYSIS OF APPARATUS. 85 



279. THE BEAUTY AND CONVENIENCE OF A PART 

 WILL OFTEN DICTATE that the cells by which it is to be 

 moved shall not be placed directly in connection with 

 it, but at a little distance, and act upon it through the 

 medium of tendons. 



280. VARIOUS RESULTS CAN BE PRODUCED by a suc- 

 cession of different contractions, or by combined con- 

 tractions, neither of which could alone effect the object. 



281. THUS HAS THE ONE ELEMENTARY MUSCLE-CELL 



the potential property that, properly applied, in connec- 

 tion with an appropriate framework, will produce all re- 

 quired nervous motions. 



282. A FRAMEWORK is NOT ESSENTIAL to a motory 

 apparatus, for certain motions can be produced without 

 a framework ; but, 



283. THE COMPLETE EFFECTS OF MOTORY APPARATUS 

 REQUIRE a framework light and strong, having a large 

 surface, and composed with many joints of varying char- 

 acter. 



284. THE FRAMEWORK AND THE MOTORY APPARA- 

 TUS MUST BE MUTUALLY ADAPTED TO EACH OTHER, SO that 



what is impossible in the Framework may be supplied 

 by adaptation in the Motory Apparatus, and what is 

 impossible in the Motory Apparatus may be supplied in 

 the Framework. 



285. THE MOTORY APPARATUS AND THE FRAME- 

 WORK are, in one sense, parts of one whole, and not to 

 be separated in action, as reasons for the construction of 

 each are to be found in the necessities of the other. 



286. THE CRANIUM, or framework, containing the 

 brain, is the only part of the whole skeleton that is not 

 constructed with reference to the production of motion. 



287. JOINTS to the number of more than two hun- 

 dred will be needed in the right and left skeleton, and 

 their exquisite beauty, and the perfection of their adap- 



279. What ? 280. How ? 281. What has ? 282. Why ? 283. what? 

 234 Why ? 285. What ar* ? 286. What is ? 287. What said of ? 



