THE SEED OF OWALA OR OPOCHALA. 



155 



TABULAR VIEW OF THE AVERAGE ANNUAL EXPORT OF THE MARBLES 

 OF CARRARA, MASSA, AND SERAVEZZA. 



Compiled from tlie Customs' Register for the years 1855-59, and from Returns 

 furnished by the Exporters. 



DENOMINATION. 



Ambrogette (flooring 



slabs) - - - - 



Lastroni (large slabs) 



Slabs 



Kavaccione - - \ 



"White pure - - < 



,, veined - - / 



Statuary, 1st qual. ) 

 „ _ 2nd „ \ 

 Bardiglio, plain, 



veined, & flowered 

 Breccias and mixtures 



Tons. 



904 



163 

 1,090 

 Bardiglio 

 and other 

 coloured 

 marbles. 



Cub. Met. 



18,080 



1,954 



939,800 



12,400 



480 



Tons. 



652 

 1,011 



804 

 Bardiglio 

 and other 

 coloured 

 marbles. 



Cub. Met. 



13,040 

 12,632 

 16,080 



1,200 



35 



SERAVEZZA. 



No. 1,000,000 



Striped ) Cub. Mt. 

 marble \ 5j000 

 (tigrato). ) 



[ ... 20 



< ... 100 



2,500 



70 



Of the above quantity produced, about one-third is taken by North 

 America, another third is sent to France and England, while the remain- 

 ing third supplies Belgium, Holland, Eussia, Turkey, South America, 

 and the interior of Italy. The greatest export of flooring slabs is to the 

 Levant ; the prices are from 2s. 6d. to 3s. 6d. each, for squares of 9f 

 inches. 



In 1859, the export duty on marble was abolished, so that there is no 

 means of ascertaining the production during that year. 



THE SEED OF OWALA OR OPOCHALA, OF THE GABOON 

 AND FERNANDO PO, AND THE OIL WHICH IT CON- 

 TAINS. 



BY J. ARNAUDON. 



Among the products sent by the French Colonies to the Universal 

 Exhibition at Paris, in 1855, was the owala seed, exhibited as coming 

 from the Gaboon (Western Africa) from whence it had been sent under 

 the direction of M. Aubry-le-Comte, now curator of the Paris Colonial 

 Museum, and it is to his kindness that I owe the specimen which Lhave 

 made the subject of this paper. I could obtain only very vague informa- 

 tion at Paris, as to the nature of the fruit and the plant to which this 

 seed belongs, for they were unknown in the various museums of natural 



