94 "French National Infulute. 



which one may vvifli to communicate. They gave thtfmfelves 

 an artificial kind of deafnefs by flopping their ears, and re- 

 moving to a great diftance. In both thefe cafes, founds were 

 perfectly heard by the fteel rod, and the founds appeared to 

 them to come from the infide of the rod, and not from their 

 real place. But the refults were different with refpect to fome 

 perfons actually deaf, on whom the experiments were tried. 

 Some of them heard very diftinclly; but the greater number 

 declared that they experienced only a tremulous movement 

 more or lefs general. 



The commiffioners conclude that this method may be em- 

 ployed with fuccefs in cafes of deafnefs which arife only from 

 fome obftru&ions in the external part of the auditory paffage, 

 but that it is ufelefs in thofe occafioned by a paralyfis of the 

 nerve, or any eflential derangement in the interior organs, 

 which, unfortunately, is moft commonly the cafe, efpecially 

 in thofe born deaf. They are, however, of opinion, that it 

 ought to be tried on young perfons who are deaf; for, even 

 if there were found only one in a hundred capable of deriving 

 benefit from this refource, it would at any rate be one fource 

 more of enjoyment to fuch an individual. 



In regard to articulate founds or words, the commiffioners 

 found that it is hardly poffible to hope that they can be con- 

 veyed with accuracy by this apparatus, at leaf! in its prefent 

 ftate. 



In the fitting of Auguft 33, General Dugua, who had re- 

 turned from Egypt, having brought with him two copies of 

 a remarkable infeription found on a black granite of an ex- 

 ceedingly fine grain, prefented them to the Inftitute. 



This monument was difcovered in digging up the earth at 

 Fort Elleve, near the Bogar of Rofetta, two leagues from that 

 town. 



It was not brought to Cairo till after Buonaparte's depar- 

 ture, and was depofited in the Inftitute of that city. The 

 difcovery was made by C. Bouchard, lieutenant of engineers, 

 who was appointed to fuperintend the repairs of the fort. 



Two members of the commiffion of the arts were employed 



at Cairo in taking copies of this monument, unique of its 



kind, in order that it might be preserved whatever might 



7 happen. 



