The Norriton Observatory was, notwithstanding, at last completely furnished with every instrument proper for the occasion. In consequence of some previous communications made by Dr. Smith to the Hon. Mr. T. Penn of London, and to the Rev. Mr. Maskelyne, the British astronomer-royal at Greenwich, the former worthy and liberal gentleman had sent, for the use of the Norriton committee, a reflecting Telescope with Dollond’s Micrometer—such as the doctor had expressed a wish to obtain; and requested, that after the committee should have made their observations with it, it should be presented in his name to the College.[115] Through the means of Dr. Smith, likewise, an astronomical quadrant of two and an half feet radius, made by Sisson, the property of the East-Jersey proprietaries, was procured by Mr. Lukens from the Earl of Stirling, surveyor-general of that province. This had been pretty early sent up by Mr. Lukens to Mr. Rittenhouse, and was used by him in ascertaining the latitude of his Observatory. ----- Footnote 115: This was one instance among many of the munificence of Mr. Penn to the College of Philadelphia, and of his zealous wish to promote the interests of science in Pennsylvania. The trustees of the college say, in a letter written to Mr. Penn the 1st of August, 1769, thanking him for his donation of the fine instrument above mentioned, together with a pair of “Adams’s new-invented Globes;” “We have likewise the pleasure to acknowledge a fresh instance of your benevolence, in sending us a chemical apparatus under the care of Dr. Rush.” “The many great and valuable favours this College has received at your hands, have always been conferred in a manner which has rendered them peculiarly acceptable; and cannot fail to leave the most lasting impressions of gratitude and esteem in the heart of every person concerned in the institution.” ----- In addition to these and some other apparatus used at Norriton on the occasion—a catalogue and description of the whole of which, are contained in Dr. Smith’s before-mentioned report—the zeal, industry, and talents of Mr. Rittenhouse enabled him to furnish his Observatory with the three following described instruments, made by himself,[116] as described by Dr. Smith. ----- Footnote 116: