In a short time, however, Keimer sent for Franklin to come back, saying that a few hasty words ought not to separate old friends, and Franklin, after some hesitation, concluded to return. About this time Keimer had a proposition made to him to print some bank bills, for the state of New Jersey. A copper-plate press is required for this purpose, a press very different in its character from an ordinary press. Franklin contrived one of these presses for Mr. Keimer, the first which had been seen in the country. This press performed its function very successfully. Mr. Keimer and Franklin went together, with the press, to Burlington, where the work was to be done: for it was necessary that the bills should be printed under the immediate supervision of the government, in order to make it absolutely certain that no more were struck off than the proper number. In printing these bills Franklin made the acquaintance of several prominent public men in New Jersey, some of whom were always present while the press was at work. Several of these gentlemen became very warm friends of Franklin, and continued to be so during all his subsequent life. At last Franklin joined one of his comrades in the printing-office, named Meredith, in forming a plan to leave Mr. Keimer, and commence business themselves, independently. Meredith's father was to furnish the necessary capital, and Franklin was to have the chief superintendence and care of the business. This plan being arranged, an order was sent out to England for a press and a font of type, and when the articles arrived the two young men left Mr. Keimer's, and taking a small building near the market, which they thought would be suitable for their purpose, they opened their office, feeling much solicitude and many fears in respect to their success. To lessen their expense for rent they took a glazier and his family into the house which they had hired, while they were themselves to board in the glazier's family. Thus the arrangement which they made was both convenient and economical. [Illustration] This glazier, Godfrey, had long been one of Franklin's friends, he was a prominent member, in fact, of the little circle of young mechanics, who, under the influence of Franklin's example, spent their leisure time in scientific studies. Godfrey was quite a mathematician. He was self-taught, it is true, but still his attainments were by no means inconsiderable. He afterward distinguished himself as the inventor of an instrument called Hadley's quadrant, now very generally relied upon for taking altitudes and other observations at sea. It was called by Hadley's name, as is said, through some artifice of Hadley, in obtaining the credit of the invention, though Godfrey was really the author of it.