d84 



On the Berlin Cast-iron Ornainents. 



" .7. Petroleum wells appear to be feeble distillations of large 

 beds of coal, and produced by the universal subterranean heat of 

 the globe. 



8. Coal-beds have never been subjected to a high temperature. 



9. Eupion and mineral-oils are quite distinct ; rectified coal- 

 tar, however, as it is prepared for dissolving caoutchouc, contains, 

 besides other substances, a mixture of mineral-oil and Eupion.* 



ON THE BERLIN CAST-IRON ORNAMENTS.f 



The Berlin cast-iron ornaments may be mentioned as an inte- 

 resting example of the increased value of manufactured, in com- 

 parison with the raw material ; and we select this manufacture 

 the more willingly, as it had its origin in Prussia ; and though 

 many attempts at imitation have been made, has never yet been 

 equalled in any other country. In one of the principal manu- 

 factories of this description in Berlin, that of Devaranne, such 

 is the fineness and the delicacy of those separate arabesques, 

 rosettes, medallions, &c. of which the larger ornaments are com- 

 osed, that nearly ten thousand go to the pound. The price 

 increases in proportion to the fineness, as will be seen by the 

 following table, which gives the selling prices of the above named 

 manufacturer. 



1. Buckles, 3^ inches long, and 2\ \ 



inches broad, | 



2. Neck-chains, 18 inches long, and^j 



1 inch broad ; and composed of > 

 40 separate pieces, . . . . j 



3. Bracelets, 7 inches long, and 21 



inches broad; and composed of > 

 72 pieces, ....... | 



4. Diadems, 1\ inches high, and 54 | 



inches broad, j 



5. Sevigne needles^ 2^ inches long, and \ 



1 4 inches broad ; and composed >- 

 of 1 1 parts, j 



6. Sevigne ear-rings, 3 inches long, 1 



and I of an inch broad ; and > 

 composed of 24 pieces, . . j 



7. Shirt-buttons, 



No. to the 

 Cwt 



Price of 

 each Article. 



2,640 

 2,310 



2,090 pair. 



1,100 



9,020 



ia,450 pair. 

 88,440 



£ a. d. 

 2 6 



6 



8 6 



16 6 



4 6 



5 3 



8 



Price per Cwt. of 

 the same. 



£ 8. d. 



330 



693 



888 5 



907 10 



2,02 10 



2,743 2 6 



2,948 



• From Schweigger-Seidel's N. Jahrbuch der Cheraic und Physik. Heft. 

 1. B. ix. 133. 



t From Dr Friedenberg's German edition of Babbage*s work. 



