IV. The organs establishing intercourse and connec- 

 tion between the mind and external objects the eye 

 the ear the organs of smell, of taste, of touch, of speech, 

 of the voice may each allow of full and extended de- 

 monstration, on drawings, models, and on engravings, 

 physiology of the brain, nerves, and senses. 



V. The different organs, when so put together, suf- 

 fering continual waste and destruction, require the fol- 

 lowing functions for their restoration, maintenance, 

 growth, and nourishment : viz. digestion, chylrfication, 

 sanguification, respiration, circulation, and assimilation. 

 The mode in which the nutritious part of our food is 

 selected and separated in the digestive organs, may be 

 mentioned with caution, and explained by analogy, as the 

 roots of plants select from the soil in which they thrive 

 their nutritious fluids, and reject such as are unprofit- 

 able. But the demonstrations may here extend through 

 the lacteal and lymphatic systems to the heart, the lungs, 

 the whole circulating system of arteries and veins in the 

 head, neck, upper extremities, and by description and 

 comparison in the lower extremities, with the physio- 

 logy of the preceding organs and systems. 



VI. All that is above stated on human organization 



5 



may in like manner be shown and explained in the six 

 classes of the animal kingdom, in quadrupeds, birds, 

 amphibious animals, fishes, insects, and worms. 



After this summary statement of the various sub- 

 jects which may furnish ample materials for curious and 

 useful lectures, it remains for the managers of the Royal 

 Institution to consider whether the subjects proposed 

 by Mr. Este are of sufficient importance to deserve their 

 encouragement and patronage? In stating this observa- 

 tion, and his remarks upon it, Mr. Este respectfully 

 trusts the managers will acquit him of every supposition 

 of presumption ; as his sole wish in communicating his 

 suggestions is to put them fully and unreservedly in 

 possession of his views. After the explanation Mr. Este 



B 2 



