THE GENTLEMAN'S MAGAZINE, London, January, 1750  

* Benjamin Franklin 
* Early electricity 

Although there is much interesting content in this issue, perhaps the best is an article: "By a Number of Experiments lately made in Philadelphia, Several of the Principal Properties of the Electrical Fire were Demonstrated...". 
The fact that this article was by Franklin & about his electricity work is documented by the April, 1857 "Gentleman's Magazine" issue in an article titled: "Autobiography of Sylvanus Urban" (pg. 357) where it states: "The earliest account of the electrical experiments made by Benjamin Franklin, at Philadelphia (where he was then the post-master) appeared anonymously in the "Gentleman's Magazine for January, 1750."
This article mentions several of Franklin's important discoveries, including: "...that it will live in water...that it is more strongly attracted by slender sharp points than by solid blunt bodies...that bodies replete with this fire strongly attract such as have less of it, and repel such as have an equal quantity..." and much more, totaling 18 "discoveries" in all.
An inside page has an article on the Aurora Borealis and includes two small illustrations of it. Also: "A Letter said to be sent to the Indian Prince of Nova Scotia, to the English governor of Chebucto". An article: "Description of Pistill Rhaiadr, Surprising Cataract (waterfalls) in North Wales".
Also: "Further Extract of a Voyage to South America, made by Order of the King of Spain" which includes a nice print of "A Guayaquil Balzar, or Raft". A nice article from "Mr. Catesby's Natural History of Carolina" is on "Insects in Carolina".
Near the back is the "Historical Chronicle" which includes a report headed "America" with items from North Carolina and Boston.
Lacking the 3 plates called for.
Complete in 48 pages, full title/contents page featuring an engraving of St. John's Gate, 5 by 8 inches, nice condition. 

Background: The January 1750 issue of The Gentleman's Magazine features a groundbreaking and historically significant article detailing Benjamin Franklin's pioneering work with electricity, titled "By a Number of Experiments lately made in Philadelphia, Several of the Principal Properties of the Electrical Fire were Demonstrated." Documented later in the April 1857 issue as the earliest anonymous account of Franklin's Philadelphia experiments, the piece outlines 18 crucial discoveries regarding "electrical fire." Notably, it describes foundational principles such as electricity's ability to persist in water, its powerful attraction to slender sharp points over blunt bodies, and the behavioral mechanics of charged bodies—where objects replete with the fire attract those with less and repel those with an equal quantity—thereby capturing a pivotal moment in the history of early electrical science.

A very nice pre-Revolutionary War magazine from the "mother country" with a wide range of varied content. This was the first periodical to use the word "magazine" in its title, having begun in 1731 and lasting until 1907.