ON OIL OF CLOVES. 
237 
low-pressure steam through a coil of pipe, heated to such a point 
as to be capable of raising the temperature of the steam passing 
through it to the degree of heat required for the purposes of dis- 
tillation. — London Pharm. Journ. April, 1852. 
ON OIL OF CLOVES. 
By George Von Hees. 
1. Ten pounds of Amboyna cloves yielded in six distillations 
thirty-one ounces, sp. gr. 1.040. 
2. Eight pounds of Bourbon cloves yielded in six distillations 
twenty-one ounces, sp. gr. 1.034. 
3. Twenty-five pounds of Amboyna cloves yielded in six dis- 
tillations seventy- four ounces, sp. gr. 1.033. 
4. Twelve-and-a-half pounds of Bourbon cloves yielded in six 
distillations thirty ounces, sp. gr. 1.043. 
5. Twelve-and-a-half pounds of Amboyna cloves yielded in six 
distillations thirty-two ounces, sp. gr. 1.038. 
6. Twenty-five pounds of Amboyna cloves yielded in six dis- 
tillations seventy ounces, sp. gr. 1.036. 
These experiments show an average of the sp. gr. of 1.0375, and of 
the oil obtained from ninety-three pounds, two and one-ninth ounces 
per pound. A quarter of a hundred weight of clove-stalks (Stipit- 
caryophill.) yielded only sixteen ounces of oil of sp. gr. 1.049, dif- 
fering considerably from the genuine oil in odor and color. All these 
oils were first prepared by conducting a direct current of steam into 
the paste-like mass formed by the cloves with water. After the 
greater portion of water had gone over, it was cohobated, and the 
distillation continued from without, with condensed vapors of the 
pressure of three atmospheres. — Pharm. Jour. April 1, 1852, from 
Archiv. de Pharmacie, January, 1852. 
