﻿/ 





/ 



\ 



40 



H 



N A 



U 



* 



A 



b 



H 



TORY 



r ft 





°. Such as we find in a folid form, with 

 d a moderate portion of earth. 



« 



ge admixture, of faline particle 



n 



; 



1 



o 



F T TCTR UM f r ' & ta t]° anum c ^ rin '^h fi 



I 







Ambe 



r. 





Sttccinum ojju 

 Yellow amber 





■^. 





Though I am fatisfied that this body has been 



fofter vegetable fubft 



hardened by time, and a long continuance under ground ; and, only in fucceffion of 

 years, fo remarkably impregnated with the mineral acid : I have been induced to g 



place among the native Fofiil 



of its peculiar electrical quality, and 



the concreated form of its falts -, as well as its fingular nature, and common bed 



2 



t 



O 



SULPHUR 



Nudum diapbanun 

 Tranfparent fulph 

 Farinaceum fiavu 

 Powder fulphur. 



M. 



3. Subviri de foli dum . 



Brimftone. 



4. Flo rale, five Jiores natural 



fulph 



un s . 









Native flowers of fulp 



! * j ■ 



Thefe two genera of bitumens, though equally impregnated with falts 



different both 



and appear 



very 

 The amber is diftinguillied by its agreea 



ble fmell, ele&ric quality, fubacid grateful volatile fait, and more difficult folubility 



The fulphur is of anoth 



flowers when pufhed ; but when expofed to 



flows with a more eafy heat, and fublimate 



more vigorous action of the fire 



yields a vail quantity (a) of an acrid or corrofive acid. 



The native flowers differ but little from thofe obtained by art ; they are, however, 

 more pure and lliining, and found in the natural ftate about moft hot baths* where 

 the heat is any thing confiderable near the furface : they are formed into hollow cones, 



and appear, in forrie meafure, as if made up of fmall cryftals 



gularly difpofed 



the mafs, the exact refemblance of a fugar loaf, but of a more mining luftre and 



yellow colour 



■ . 



. 





• 



* t . 



I 





■ * I I X c 



III d . Such as have a -more abundant admixture of terrene particles, with few falts 



1 



and are found in a folid form 









1 



o 



AMBRA 



r r 



Grifea odorata> colore uniformi. 



Ambergreaie. 



Subfufca> levz's et variegata. 



Englijh amber, or brown bitumen. 



Mr. Baker has a piece of this laft fubftance among his cur 

 Foffils : Both the fmell and appearance oblige me to range.it in this clafs 



■ 



collection of 





ASPHALTUM 



t ■ *■ f 



Subfriabile atrum 

 Jew's Pitch. 



• \ 



I 









This is a light, folid, inflammable fubftance ; of a black colour, and fhinin 



when frefh broke : It has a faint fmell, and breaks with equal eafe 



directions 



but of no apparent g 



ifhes now ufed by the engravers 



It melts very eafily, and is a principal ingredient in all the 



pnoraver<; • * - * 4 



f 1 . Scbifli nit ens friabilis atra» 



1 



Coal. 







3°. LITHANTRAX^ 2. Solida nigra nuda. 



Jett. 



j^ 3 . Marmoris fcetidi. 



■ 



P 





(a) Sulphur yields about fourteen ounces in the pound. 



* 



Thefe 



« 













t 



- 



* 



