1From Thomas Jefferson to C. P. de Lasteyrie, 15 July 1808 (Jefferson Papers)
I have duly recieved your favor of Mar. 28. and with it your treatises on the culture of the Sugar cane & Cotton plant in France. the introduction of new cultures, & especially of objects of leading importance to our comfort, is certainly worthy the attention of every government, & nothing short of the actual experiment should discourage an essay of which any hope can be entertained. till that...
2From Thomas Jefferson to C. P. de Lasteyrie, 28 March 1807 (Jefferson Papers)
I return you my thanks for your two volumes on the subject of the Merino breed of sheep, which have come safely to hand. no one sets higher value than I do, on whatever tends to promote those pursuits which belong to Agricultural life, and among these, the improvement of the race of sheep is of principal importance; for the information you have given on this subject we are all indebted to you....