[Advertisement] The Gentlemen who have subscribed to the Encouragement of a Course of Philosophical Lectures and Experiments, to be performed by Mr. Greenwood, are desired to meet in the Chamber adjoining to the Library at the State House, on Tuesday next, about 9 a Clock in the Morning, when it is proposed the Course should begin, and be continued afterwards, at such Times as the Gentlemen then present shall see fit to determine: And such Gentlemen who are willing to attend a Course at other Times, in the same Place, are desired to leave their Names at the Post Office in Philadelphia, where the Conditions thereof may be seen, and Subscriptions taken in.