Doctor of Medicine James Johnson (Physician extr. to the late king.) publishes a book in London in 1841 "PILGRIMAGES TO THE SPAS IN PURSUIT OF HEALTH AND RECREATION". Czech approximately: "Travel books to sacred spa places, sought after for strengthening health and recreation". In the book, he describes his visit to the famous Teplice spa, where he met the author of the latest publication on Teplice springs, Dr. by Richter (Published the year before that, 1840).
According to his assessment "Teplice is the most fashionable German spa resort. Especially after the season, when there are no longer crowned heads and the very nobility who come to cure bodily defects and soothe the soul".
He also reminds that the Sedlecké and Zaječické springs, famous throughout Europe, belong to Teplice. He describes his visit to the Lobkowicz bottling plant in Bílina and the springs in Zaječice. He clarifies to British readers that the ingredients for "Sedlec powders" are not mined in Sedlec, and that Sedlec and the more widely used Zaječická is a strong solution of Epsom salt. With exaggeration, he says that he does not want to reject the old well-known preparation "Sedlecké powders", which all English people use and which refers to the composition of Sedlecká water. But he suggests a new name "TRUE (LONDON) PEASANT POWDER".