CATARACTS AWD CANAL OF TROELLH^ETTA. jg^ 



VI the contrary, it was necelTary to add fome redu6live flux> m'nutss. The 

 to that fufed by the wood charcoal, in order to rcftore the ^ g^y 'J^^ ° 

 walleabilily which it had loft. prefcmd. 



4-. Iron made red-hot by charcoal of turf in a forge, became Iron heated by 

 •more malleable ; which proved thai it gave none of its carbon nialieable. It 

 to the metals with which it came in contact. lafts longer than 



5. Finally, Turf charcoal lafts longer in a ftate of ignition *'""'-*''««»^ 

 "than charcoal of wood, and its heat is conEantly equ^l. 



ConclufiOK. 



1. The odo^r of turf in conjbuftion is noway* deleterrous. Sts odour not at 

 This truth has beencon'firn>edby the moftdiftinguiniedchemifts;^^,^^^^ 



and is be-fides iproved by the conftant ufe made of this fuel in 

 the ci-dcvant provinces of JFlanders, Artois, and Picardy. 



2. It is defirable that the carbonifation of turf may i?e en- Its ufe ought ta 

 couraged, oji account of the great advantages which may re- ^ "ic^^raged, 

 fult from the ufe of this^new fpecies of charcoal, both for 



private confumption and for large works. . • 



But the greateft matter in its favour is, that its ufe tends to andwill preftrvt 

 <liminifk the felling of the forcfts, whole extenSon ought to be * ^'^'^ 

 promoted by every means poffible, and which nothing tends fo 

 much to deftroy as the ufe of wood charcoal. 



VII. 



Jcconnt (f the Cataracts and Canal of Troellhectia, in Sweden, 

 (from a Work relative to them by Colonel Skioeldebrand. 

 PubliJIitd in, one Volume Quarto, at Stockholm.) 



JL HE cataraSs of Troellhsetta produce one of the fineft eP^ ; - 



fedls which nature affords in Europe. The river of Gothie is The ca^aSs 

 Ihe only outlet of the vaft lake of Wener, navigable through the H vT/GoUife 

 its whole extents This river, which fails in the North fea near foon after its dc- 

 Gothemberg, as foo« as it departs from the lake, which is much pj'''^"Tu.^''"'" 

 more elevated than the fea, rolis iis waters with impetuofity, 

 and dafhes thena againfl fteep rock^, whofe refiftance forms a 

 lucceftion of catarads, wliich without being individually very 

 ,^iigh, form aJtogetiier amoft ftriking obje<5i. The imagination They form a very 

 is the more affeQed by this ftght, as the furrounding fcenes are ^''"^'"S '^''■^ 

 ©f a dark aiad laelancholy cbaraftsr, confil^ing of grey rocks 



t?rovvned 



