152 Extraordinary Copper-plate Printing. — Meridian. 



fuel now employed. M. Lemare's process is a very simple, and, 

 for that 1 eM.snii, very ingenious improvement of Papin's digester. 

 It speaks much in favour of the invention, that, as appears from 

 a letter of the Minister of the Interior, the autoclave has been in 

 use above a month in the School for the Blind at Paris. Should 

 it come into general use, M. Lemarc will doubtless derive more 

 profit from the sale of this apparatus than from all his discoveries 

 in etvmolugv, and his excellent precepts on orthography; and 

 this is in the nature of things. In this enlightened age, we un- 

 doubtedlv set a high value on correctness of language, but a well- 

 dressed dinner is far more valuable. — {Foreign Journal.) 



EXTRAORDINARY COPPER-PLATE PRINTING. 



The following is from the Report of the Central Jury, on the 

 production of French industry exhibited in the Louvre, in 1819. 



" M. Gonord exhibited, in 1806, porcelain on to which cop- 

 per-plate engraving had been transferred by mechanical means. 

 He has again appeared at the exhibition of 1819, with some 

 specimens of the same art perfected. He has arrived at a sin- 

 gular but undoubted result. An engraved copper-plate being 

 given, he will use it for the decoration of pieces of different di- 

 mensions, and, by an expeditious mechanical process, enlarge or 

 reduce the design in proportion to the piece, without changing 

 the plate." 



In a note, it is said, that " M. Gonord has made a discovery 

 of which the announcement has excited the surprise of the public. 

 If an engraved copper-plate is given to him, he can take impres- 

 sions from it of any scale he pleases. He can at pleasure make 

 them larger or smaller than the plate, and this without requiring 

 another copper-plate, or occupying more than two or three hours. 

 Thus, if the engravings of a large atlas size, as for instance, those 

 belonging to the Description dc I'Egypte, were put into his hands, 

 he would make an edition in octavo without changing the plates. 



The certainty of the process has been corroborated by the 

 members of the Jury, who were admitted by M. Gonord into his 

 works. In consequence of their report the Jury decreed a gold 

 medal to M. Gonord. — Annales de Chim. xiii. p. 94. 



MEASUREMENT OF THE MERIDIAN. 



The operations now carrying on, by order of the King of Den- 

 mark, for measuring an arc of the meridian in Denmark and 

 Holstmi, are to be continued through the kingdom of Hanover. 

 For the purpusc of ascertaining with accuracy the vegetable pro- 

 ductions of Hanover, His Majesty has been pleased to approve of 

 the appointment of a physiographer for that purpose, and of the 

 nomination of Dr. G. F. W. Meyer to the office. 



TERfPLE 



