Analysis of information sources in references of the Wikipedia article "Royal Microscopical Society" in English language version.
But was there a specific tipping point for this change? In 1900, Mrs. Marian Farquharson, a botanist who had helped to publish a field guide to British ferns, requested that "duly qualified women should be eligible for ordinary Fellowship and, if elected, there should be no restriction forbidding their attendance at meetings". This insistence on attendance at meetings was important; other societies allowed women to be members, but they were barred from attending meetings (Farquharson had been elected as the first female Fellow of the Royal Microscopical Society in 1885 but was not allowed to attend). At first she was rebuffed by the Council of the Linnean Society, but eventually won the day, through sheer persistence (the Society holds a plethora of correspondence from Farquharson) and the vocal support of some members of Council. Ironically, she was the only one of the 16 proposed Fellows who was not admitted on that day in November 1904!