172 Miscellanies. 



small specimen of the supposed new mineral Ledererite ; but, on 

 examination, it proves, by its form and angles, to be the Hydrolite 

 of De Dree, or Gmelinite of Sir D. Brewster. The analysis of 

 Vauquelin gives silica 50, alumina 20, which agree nearly with the 

 proportions of the Nova Scotia mineral. Vauquelin, it is true, found 

 21 of water, instead of 8.58 ; but as, perhaps, water may turn out 

 to be isomorphous with both lime and phosphoric acid, the two analy- 

 ses may, when expressed symbolically, appear to agree with each 

 other and with the theory ; or there may be some error in one of the 

 analyses. 



9. Meteorology. — A letter to the Editor, dated Feb. 24, 1834, at 

 St. Brieux, Cotes du Nord, from M. Morin, Ingenieur Ordinaire 

 des Pontes et Chaussees, membre de plusieurs societies scientifiques, 

 &;c., invites the meteorologists of this country to a communication 

 and interchange of observations on this interesting subject. M. Morin 

 states, that meteorology has engaged his attention for twenty years ; 

 that in 1814 his observations were confined to a single place; that 

 he gradually extended them, until, in 1821, they comprised many 

 departments of France ; that, in 1825, he resolved to extend ihem 

 over the whole world, by giving the history of the seasons from Oc- 

 tober 1, 1823. For some months before the date of his letter, he 

 had entertained the intention to carry back his record to the year 

 1658, beyond which period there are no connected meteorological 

 observations. He has published five memoirs upon the subject of 

 the correspondence which he has established with most of those who 

 cultivate meteorology ', a sixth memoir was in the press, and they 

 will be forwarded to the Editor, as soon as a proper channel is indi- 

 cated. M. Morin solicits of us, either direct information, or that we 

 will invite, through this Journal, the communication of observations, 

 and a correspondence with himself. He has received various docu- 

 ments from the United States, but they are incomplete ; he is in want, 

 particularly, of continued and precise barometrical observations from 

 this country, from 1824 to 1833, inclusive. We earnestly invite the 

 attention of meteorologists to the above communication, and we offer 

 our pages and our personal agency in promoting this important object, 

 whose interest is not local or temporary. 



We have received from M. Morin a memoir containing Instruc- 

 tions sur la maniere de faire des observations meteorologiques, pub- 

 lished at Paris, in 1834. 



