1From Thomas Jefferson to Benjamin Waterhouse, 26 June 1801 (Jefferson Papers)
Your favor of the 8th. inst. came safely to hand with the several matters accompanying it. as the longer the vaccine matter should be unemployed, I knew the chance of it’s success would be the less, I thought it would be more likely to answer your benevolent views by having it employed here rather than risking it by a further mission to Virginia. I therefore put it immediately into the hands...
2From Thomas Jefferson to Benjamin Waterhouse, 25 July 1801 (Jefferson Papers)
Your favor of the 17th. arrived last night, together with the new Vaccine matter which was immediately sent to Doctr. Gantt . the 2d. as well as the 1st. supply of matter had failed. we hope the 3d. will be more succesful. how might it answer to put the matter into a phial of the smallest size, well corked, & immersed in a larger one filled with water & well corked. it would be effectually...