AERONAUTICS. 



217 



model is remarkable as being probably the first which actuated 

 by steam has flown to a considerable distance.^ The French 

 have espoused the aerial screw with great enthusiasm, and 

 withiii the last ten years (1863) MM. Nadar,^ Pontin 



Fig. 112. — Flying Machine designed by M. de la Landelle. 



d'Amecourt, and de la Landelle have constructed clockwork 

 models (prthopteres) , which not only raise themselves into the 

 air, but carry a certain amount of freight. These models are 



^ Eeport on tlie First Exhibition of the Aeronautical Society of Great 

 Britain, held at the Crystal Palace, London, in June 1868, p. 10. 



2 Mons. Nadar, in a paper written in 1863, enters very fully into the sub- 

 ject of artificial flight, as performed by the aid of the screw. Liberal extracts 

 are given from Nadar's paper in Astra Castra, by Captain Hatton Turner. 

 London, 1865, p. 340. To Turner's handsome volume the reader is referred 

 for much curious and interestmg information on tlie subject of Aerostation. 



