M A SYSTEM OF 



SECT, V. 



The Calcareous Earth is found, 



I. Pure, 



I. In form of powder. /Igaricus Miner alis^ 

 or Lac Luna. 



a. White, is found in moors and at the 

 bottom of lakes, at Reden in the province 

 of Jemtland, atTimmerdala in Weftergott- 

 land, and aifo in the provinces of Smo- 

 land, Oftergotland, and ifland of Goth- 

 land in Sweden *. 



b. Red, is alfo found in Gottland. 



c. Yellow, is found at Timmerdala, in Wef- 

 tergottland f . 



* The white mineral agaric, fo called from its finenefs and 

 fightnefs, like to the vegetable agaric, is found in fuch placst, 

 j. e. fwamp moors or peats in England and Scotland, as like- 

 wife in the firTures of the freeftone quarries of Oxfordshire, 

 Northampton mire, &c. but the red and yellow forts t never 

 heard of in England. See Hill. Foil noil. p. 82. N°. vii. 

 D.C. 



f This kind of earth feems to be an impalpable powder 

 of mouldered limeftones abraded and collected by the waters, 

 and is therefore common in the neighbourhoods where lime- 

 ftones are found ; and if the ftone is at fome diftance, which 

 is fometimes the cafe, Hill nothing contradictory appears in 

 this opinion of the origin of this fpecies ; fmce in that cafe 

 it has only been carried farther by the greater rapidity of 

 a flronger Current of water. When this earth is found in 

 the clefts of rocks, it receives more pompous names ; fuch 

 as Gur, Lac Luna;, &c. &c. It burns readily into lime, if 

 it is previoufly fiamped, that it may better cohere : it is then, 

 or in its native Hate, ufed for white-waihing, but eafily rubs 

 off by the lead touch. At certain places in the province of 

 Smoland in Sweden, there is found in the moors a white earth, 

 which, by its external appearance, refembles the fpecies here 

 defcribed ; but it does not (hew any marks of eftervefcence with 

 acids, nor does it burn into lime. It were to be wifhed, that 

 thofe who have an opportunity of getting any quantity of 

 this latter earth, would undertake to examine it better. 



S E C T. 



