(1688) From which I then concluded that the floury substance of these tiny Peppers , which , in size and structure , corresponded to those of our common Pepper , cannot cause the slightest prickling with their sharp parts which , as I said heretofore , we can see through the magnifyingglass .But that it must rather be salt particles that cause such a stir , or stinging on our tongue , which , as I said before , we call heat .I did then take some of this long Pepper , and laid the same between a clean Paper , and smashed it to pieces on an anvil ; I put that substance into a small , new glass bottle , and poured upon it so much rain - water that the crushed Pepper lay about a third of an inch under water .