Answer: To bring together scientists interested in understanding natural phenomena.
Step-by-step explanation: American philosophical society also known as APA was established in 1743 at Philadelphia by Benjamin Franklin. The very purpose of establishment of the society was to make a scholarly society which will try to find out how the nature of things increases the power of man over matter by using their intellect and knowledge. So, the correct answer to this question is that Benjamin Franklin brought together scientist who are interested in understanding the natural phenomena.