174 Proceedings of the Royal Institution, 



upon the tables, and round the room, a collection of beautiful pen 

 and ink drawings, by Mr. Train. A fine proof of an engraving, by 

 Robinson, of Mulready's Wolf and Lamb ; and also proof engrav- 

 ings, by Turrel, of Adcock*s drawings of Steam-engines. 



Mr. Turrel set up a new instrument, invented by him, and called 

 a Perspectograph. Its object is to find any required point in the 

 plane of the picture of a perspective view of any subject, and refer 

 it accurately to the paper on which the drawing is to be made. This 

 it does in the simplest manner possible, and without any embarrass- 

 ment of the drawing-board or t}ie object to be drawn. We shall 

 give a more detailed account of this useful and simple contrivance. 



Some very perfect working models of Don's patent metallic 

 shutters were also exhibited, Mr. Don himself attending to ex- 

 plain the principles and advantages of his invention. 



February 22nd. 



An account of the recent improvements in the art of printing, 

 (seethe paper, at page 183,) was illustrated by Mr. Cowper, on6 

 of those with whom the improvements have originated. 



Library. — The Kenong, a very sonorous and powerful musical 

 instrument, from Java, was placed upon the table. It is a large 

 metallic vessel, in the form of a contracted bowl, supported by its 

 edge upon two strings, over a cavity in an ornamented wooden case ; 

 it owes part of the character of its sound to resonance. 



The apparatus for the performance of various experiments on 

 Resonance, or the Reciprocation of Sound, was placed upon the 

 table, that those who had been interested in the subject of the last 

 evening, might have an opportunity of repeating them, for their in- 

 dividual satisfaction. 



A painting, by Sig. Luigi Gentile, being a panoramic view of the 

 city and bay of Naples, was fixed up in the room ; also one of Mr. 

 Bennington's fine sketches from the foot of the Rialto, at Venice. 



There were illustrations of botanical physiology, by Mr. Lingard } 

 specimens of printing ; a model of Charlton's press, for official papers, 

 etchings, &c. 



February 29th, 



Mr. Solly exhibited a variety of specimens illustrative of the 

 comparative anatomy of birds, and delivered a discourse upon thp 

 same subject in the Lecture Room. 



[To be continued.] 



