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He feels it incumbent on him to repeat his opinion that 

 the branches of science which admit of demonstration, ex- 

 periment, and illustration, are best calculated, by a mix- 

 ture of amusement and instructions, to draw attention, 

 and thereby give stability to scientific institutions ; such 

 are chemistry, astronomy, experimental philosophy, and 

 the science proposed ; to these many universities are in- 

 debted for their foundation and celebrity. 



The science in question requires demonstration ; for 

 in what manner can the fitness of animated nature to its 

 situation and functions be judged of without some pre- 

 vious knowledge of that nature? Can a musical in- 

 strument, an organ, for instance, be constructed so as to 

 produce its effects unless the principals of its mechanism 

 be thoroughly known ? the organs of animated beings 

 are nothing more than the instruments adapted to their 

 situations and functions, subjects not to be understood 

 without the knowledge of structure. Such knowledge 

 Mr. Este respectfully believes may be easily and saefly 

 communicated by the aid of drawings properly intro- 

 duced and executed, so as neither to give offence to any 

 audience, however scrupulous, nor to trespass on the pro- 

 vince of the teachers of any practical arts. Having com- 

 municated what he believes necessary to assist the ma- 

 nagers in forming their judgment, Mr. Este trusts he 

 may be permitted to renew his request that they will 

 have the goodness in their deliberations, to compare the 

 whole nature and bearings of bis statements, with the 

 objects they have in view ; and to consider whether these 

 subjects are of sufficient importance to deserve their en- 

 couragement and support, so as to induce them to assist 

 him in " permanently " establishing this department of 

 science in the Royal Institution ; as he respectfully con- 

 ceives, that unless his plans are adopted with a view to 

 their being rendered permanent, neither the Institution 

 nor himself can derive any benefit or advantage from such 

 an undertaking. Much time and study, and no incorisi- 



