More than two hundred years ago, the English physician D. Hill was elected to the Royal Scientific Society. After a while, he sent a report to this society with the following content: "One of the sailors on the ship on which I worked as a ship doctor had a broken leg. I collected all the fragments, placed them properly and poured resin and sludge water obtained when the resin was exhausted. Soon the fragments joined together, and the sailor was able to walk as if nothing had happened. In ancient times, the Royal Society spoke a lot about the healing properties of sludge water and dew. The message of Dr. D. Hill caused great interest and was read at one of the scientific sessions. A few days later, D. Hill sent a further message to the society:

“In my report, I forgot to mention that the sailors’ leg was wooden.”