148 Mr. Hatchett'j Obftroations on Bituminous Subjiances. 



A, No. 3. 



Dark brown bitumen of a ftalaclitical form, hard, but in fome 

 degree elaftic. 



A, No. 4, 



Bitumen of a reddilh brown, in the form of globules, fome of 

 which ate elaftic, and others hard 1 on brown ilh-grey limeftone,, 

 accompanied by cryftallized white fluor, dogtooth calcareous fpar r 

 and pyrites in fmall cryftals, fome of which are on the furface of 

 the globules of bitumen. l 



A, No. 5. 

 The fame of a darker brown, of a ftalactitical form, hard and 

 brittle; on pale brown calcareous fpar, impregnated with bitu- 

 men. 



A, No. 6. 

 Bitumen of a dark redd ifh brown, very hard ; on pale brown fparry 

 itink-ftone, with grey limeftone, in which are fome coralloides. 



A, No. 7. 



Bitumen of a dark yellowifti brown, elaftic, but very foft, fa that 

 it adheres to the fingers. 



A, No. 8. 

 The fame thinly fpread over grey fparry ftink-ftone. 



A, No. 9. 



Bitumen of a brownifh olive colour, which becomes reddifh 

 brown by the air, but when oppofed to the light it appears femi- 



tranfparent^ 



