Collinson was a particular patron of the Philadelphia scientific community assisting the fledgling American Philosophical Society founded by Bartram and Franklin in 1743. He also served for many years as the purchasing agent for the Library Company of Philadelphia. It was through Collinson that Franklin first communicated to the Royal Society what would in 1751 be published as Experiments and Observations on Electricity. He was elected a foreign member of the Royal Swedish Academy of Sciences in 1747.
Collinson
Franklin