346 REVIEWS. 



" Lignite, sometimes called brown coal, is usually distinguished as 

 bituminous and non-bituminous. In bituminous lignite the quantity of 

 bitumen and other volatile matter vary from 40 to 60 per cent., the propor- 

 tion of carbon within the same limits ; and the ashes from 4 to 10 per 

 cent. There is a variety of bituminous lignite, commonly known as steam- 

 coal, containing from 11 to 15 per cent, of bitumen and other volatile 

 mtater, and from 80 to 85 per cent, of carbon. A specimen of this coal 

 was found in Maine, one of the States of North America, which yielded, 

 upon analysis, 72 per cent, of bitumen, 21 of carbon, and 7 of ashes. In 

 non-bituminous lignite, the quantity of carbon varies from 50 to 70 per 

 cent. 



" The specimens of lignite which were submitted to me by the Ha'itien 

 government for analysis, fall respectively under the head of bituminous 

 and non-bituminous. Of the bituminous specimens, that from VAzile sur 

 la riviere Dorge yielded, upon analysis, of 



Bitumen and other volatile matter 50.0 ) = 75.0 of combustible 



Carbon ----- 25.0 ) matter. 



Ashes, consisting of Iron, Lime, ) 2 ~ ~ 

 Alumina, and Silica - ] 



100.0 



" That from Lasgoiamos section de Morange commune de Hinclie, yielded 

 of 



Bitumen and other volatile matter 60.0 ) = 92.5 of combustible 

 Carbon - 32.5 ( matter. 



Ashes, consisting of Iron, Lime, ) -, 

 Alumina and Sand - - ] 



100.0 



"These two specimens are all that fall properly under the head of 

 bituminous Lignite. It will be seen that they do not, by any means, 

 compare badly with Lignite, found in other parts of the world. The 

 other specimens of lignite submitted to analysis, are non-bituminous, of 

 which two are from Anse a Veau. 



No. 1 No. 2 



Carbon 50.0 75.0 



Ashes, consisting of Iron, Alumina \ kqq «5 

 and Silica --•-)" 



100.0 100.0 

 " The next is from Banica, and consists of 



Carbon 66.7 



Ashes, = Silica, with a trace of Iron - 33.3 



100.0 



" Two specimens, taken respectively from Hinche, and from a locality 

 not named, yielded, of 



No. 1 No. 2 



Carbon 92.5 90.0 



Ashes, = Iron, Lime, Alumina, ) » 5 -^ q 

 and Silica ) 



100.0 100.0 



