September 1749. 



leaves between the cracks of the lime-flate. 

 Its colour is a fnowy white. I have found 

 it in feveral parts of Canada, in the fame 

 black lime-ftone. 



Pierre a Calumet. This is the French 

 name of a ftcne difpofed in ftrata between 

 the lime-flate, and of which they make al- 

 moft all the tobacco-pipe heads in the coun- 

 try, The thicknefs of the ftrata is diffe- 

 rent. I have feen pieces near fifteen inches 

 thick; but they are commonly between 

 foqr and five inches thick. When the 

 ftone is long expofed to the open air or heat 

 of the fun, it gets a yellow colour; but in 

 the infide it is grey. It is a lime-ftone of 

 fuch a compadtnefs, that its particles are 

 not diftinguifhable by the naked eye. It is 

 pretty foft, and will bear cutting with a 

 knife. From this quality, the people like- 

 wife judge of the goodnefs of the ftone for 

 tobacco-pipe heads ; for the hard pieces of 

 it a,re not fo fit for ufe as the fofter ones--fTf 

 Jiave feen feme of thefe ftones (hivering in- 

 to thin leaves on the outfide where they were 

 expofed to the fun. All the tobacco-pipe 

 heads, which the common people in Canada 

 make ufe of, are made of this ftone, and 

 are ornamented in different ways/ A great 

 part of the gentry likewife make ufe of 

 fhem, efpecially when they are on a journey. 



The 



