""A Letter By Dr. Franklin To The Royal Academy Of Brussels"" is a historical document written by one of the Founding Fathers of the United States, Benjamin Franklin. The letter was originally written in French and addressed to the Royal Academy of Brussels, a prestigious scientific institution in Belgium. In the letter, Franklin discusses his experiments with electricity and shares his observations on the nature of lightning. He also proposes a new theory on the nature of heat, suggesting that it is not a substance but rather a motion or vibration of particles. The book includes the original French text of the letter as well as an English translation. It provides insight into the scientific mind of one of the most influential figures in American history and sheds light on the early days of scientific inquiry in Europe and America.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.