290 DETAILED SYNTHESIS. 



733. Inf. IT is OF GREAT CONSEQUENCE to have fftod prepared in a 

 savory manner : many a plain dish may thus be made exceedingly at- 

 tractive. 



734. Inf. ROOMS SHOULD BE FURNISHED not only with flowers, bou- 

 quets, and nosegays, but, as this name implies, they should be fragrant. 

 A party should not be given to gratify the sense of taste only or chiefly ; 

 but the other senses should also be addressed, and flowers, sweet-scented 

 flowers, should abound, as a source of refined entertainment. 



% The Eye. 



735. Remark. THE EYE is USUALLY THOUGHT TO BE a complicated 

 organ in structure and action, because many acts have been attributed 

 to it that it does not perform, and because it has not been examined in 

 a natural manner. The process of seeing, so far as the eye is concerned, 

 and its structure, are very simple and easily understood, if correctly 

 examined. 



736. THE EYE is CONSTRUCTED of several distinct 

 classes of parts, each adapted to its peculiar purposes, 

 that should be distinctly described. 



737. THE PARTS OF THE EYE MAY BE CLASSED, 1st, 

 as the nervous ; 2d, as those adapted to cause the light 

 to act upon the nervous part ; 3d, as those promoting 

 the movements of the eye ; 4th, as those moistening the 

 eye ; 5th, as those adapted to protect the eye. Each of 

 these classes of parts may be subdivided. 



Nervous Structures of the Eye. 



738. THE NERVOUS PARTS OF THE EYE are construct- 

 ed of the dura mater, the pia mater, and the ganglionic 

 structure, called the retina, which will be best under- 

 stood if described in the following manner : 



739. THE OPTIC NERVE, or nerve of sight, EXTENDS 

 from its ganglion in the Brain, through an appropriate 

 opening in the skull at the bottom of the eye-socket. 

 It is formed externally of the dura mater lining the skull, 



783. What is -? 784 How should ? T85. What is ? T86. How is -? 

 187. How ? 788. are constructed how ? 739. How does ? 



