534 ANNUAL RECOKD OF SCIENCE AND INDUSTRY. 



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served for use. The color is dead, however, even with two 

 coats, and does not receive a polish as readily as that with 

 alcohol varnish. A gloss may be imparted by coating it 

 with the pure varnish, to which half its weight of oil of tur- 

 pentine has been added, or better still by coating it with 

 sandarac spirit-varnish, since sandarac is harder than dam- 

 mar alone, and the article will therefore endure handling 

 longer. The elasticit} 7- of these paints is less than that of 

 fresh oil paints ; but this quality is easily dispensed with in 

 painting inner doors, window-frames, etc. 15 C\ VII., 1875, 

 97. 



KEKUNE OIL, OR HUILE DE BANCOUL. 



The oil from the nuts of the Aleurites triloba (they contain 

 50 to 60 per cent.), which is found in the European market, 

 though not regularly, under the name of Kekune oil, or huile 

 de bancoul, deserves, according to Dr.Wiesner, more notice 

 from oil manufacturers, not only on account of its cheapness 

 (as it can be produced in large quantities in Guadaloupe, 

 New Caledonia, etc.), but also on account of its quality. It 

 belongs to the drying oils, and is said to be remarkably well 

 adapted to the preparation of oil paints, and if it also prove 

 adapted to the manufacture of printing-ink, at less cost than 

 that from linseed-oil, its introduction for that purpose will 

 be very desirable. 6 C, July 30, 1874, 308. 



OIL FROM THE CARAPA-TREE. 



Attention has lately been called to the commercial value, 

 for oil-producing purposes, of the Carapa-tree (Carapa guyci- 

 nensis). This plant abounds in French Guiana, especially in 

 the district of Cachipour, where it forms vast forests. The 

 fall of the nuts extends from February till June, and they 

 are so abundant that the soil for many leagues in extent is 

 covered with them to a depth of several inches. If collected 

 and pressed during this period, they yield about 35 per cent. 

 of an excellent oil. The price at Cayenne is estimated at 

 about $25 to $30 per ton. 17 A, October 1, 1874, 151. 



VASELINE, A NEW PETROLEUM PRODUCT. 



A new petroleum product has been introduced into the 

 trade under the name of Vaseline, which, according to The 



