1Enclosure: Nicolas Louis Vauquelin’s Analysis of Green Tobacco, 12 January 1809 (Jefferson Papers)
, they were compressed in a towel to seperate all that was soluble. This operation was repeated three times, adding a small quantity of water.Altho the vegetable was sufficiently squeezed in the towel, the juice contained a great quantity of green matter in suspension, which was seperated by filtration, by means of