Frank­lin’s fame in the sci­entific world was due al­most as much to his mod­est, simple, and sin­cere man­ner of present­ing his dis­cov­er­ies and to the pre­ci­sion and clear­ness of the style in which he de­scribed his ex­per­i­ments, as to the res­ults he was able to an­nounce.