Editor of the Tribune:--In October, 1817, the Rev. James Lemen, Sr., had a government surveyor make a map showing how the boundary of Illinois could be extended northward so as to give a growing state more territory and a better shape and include the watercourses by which Lake Michigan might be connected with the Mississippi river. With these advantages marked in the margin of the map, he gave his plan and map to Nathaniel Pope, our territorial delegate in congress, to secure the adoption of the plan by that body, which he did. The facts were noted in the Rev. J. M. Peck's pioneer papers and others, and in commenting on them some of our newspapers have recently charged Nathaniel Pope with carelessness in not publishing Mr. Lemen's share in the matter, but unjustly. Mr. Lemen and Mr. Pope were ardent friends, and as the former was a preacher and desired no office, and he wished and sought for no private preferment and {p.38} promotion, he expressly declared that as Mr. Pope had carried the measure through Congress with such splendid skill he preferred that he should have the credit and not mention where he got the map and plan. Rev. Benjamin Ogle, Mr. Lemen's brother-in-law, and others mentioned this fact in some of their papers and notes. The omission was no fault of Mr. Pope's and was contrary to his wish. The present site of Chicago was included in the territory added, and that is how Illinois got Chicago. PIONEER. IV. ADDRESS TO THE FRIENDS OF FREEDOM (From _The Illinois Intelligencer_, August 5, 1818.) The undersigned, happening to meet at the St. Clair Circuit Court, have united in submitting the following Address to the Friends of Freedom in the State of Illinois.