tJiDnl'ohWs Travels. — New Metal. — Astrtjnomy, ^c. 95 



M. Mechain set out on the 26th of April for Spain, where 

 he intends to measure a triangle of 93^000 toises, termi- 

 nating at the Balearian islands, and \\ hich will complete 

 the grand and important measurement of the meridian which 

 Mechain and Delambre made a few- years ago. lie is ac- 

 companial by M. Chevalier, Dezauche, and Mechain jun. 

 This measurement will be very difficult : but no one is more 

 capable than M. Mechain to overcome difficulties; ar»d we. 

 shall have the 43th degree in the middle of the whole arc 

 measured by the French. De Lalance, 



Humboldt's travels. 



The report some time ago circulated of the death, of this 

 celebrated traveller has been contradicted by some of the 

 Berlin journals, which state, that letters b-avc been lately 

 received from him by some of his friends at Paris. These 

 letters, which are dated at Lima, announce that he pro- 

 posed to return to Europe about the month of September 

 wext. 



NEW METAL. 



Proust has discovered that the substance which he con- 

 sidered as a new metal, and to which he had given the 

 name of seUuie, is nothing else than uranium. 



ASTRONOMY. 



Tabic of the geocentric motions of tl).e two new" planets 

 for the month of Julys 



PHILOSOPHICAL LECTURES. 



The rev. D. F. Puyce, A. M. curate of Bathwick, hai 

 been for some time cngaucd in preparing a philosophicaJ 

 apparatus, on a very extensive scale, under the inspection ui 

 Mtsjrs. \V. and S. Jones, Holborn, on which he designs to 

 read two or more courtcs of popular lectures aunually m the 

 ttity of iiaih. The apparatus is iu such a itaie of forward- 

 ness^ 



