The pages of our Magazine are open, and have ever been, to the discussion of all general questions in Political Law, or Economy—never to questions of mere party. The paper on the _Right of Instruction_, which forms our leading article this month, was addressed, in the form of a letter, to a gentleman of Richmond. The letter concluded thus— “I assure you, my dear sir, that I hesitate about sending these sheets to you under the denomination of a _letter_. But I began to write without knowing how far the subject might carry me on. No doubt had I time to write it over again, I might avoid repetition and greatly abridge it. But I pray you to take it with a fair allowance for all imperfections of manner; for the opinions and argument I confess my responsibility. Most truly and respectfully your obedient servant, —— ——.” CRITICAL NOTICES. LETTERS ON PENNSYLVANIA. _A Pleasant Peregrination through the Prettiest Parts of Pennsylvania. Performed by Peregrine Prolix. Philadelphia: Grigg and Elliot._ We know nothing farther about _Peregrine Prolix_ than that he is the very clever author of a book entitled “_Letters descriptive of the Virginia Springs_,” and that he is a gentleman upon the wrong side of forty. The first fact we are enabled easily to perceive from the peculiarity of an exceedingly witty-pedantic style characterizing, in a manner not to be mistaken, both the Virginia and the Pennsylvania Letters—the second appears from the first stanza of a rhyming dedication (much better than eulogistic) to _John Guillemard, Esquire, Fellow of the Royal Society, London_— I send my friend a little token Three thousand miles across the sea, Of kindness, forty years unbroken And cherished still for him by me. However these matters may be, it is very certain that _Peregrine Prolix_ is a misnomer, that his book is a very excellent thing, and that the Preface is not the worst part of it. Our traveller, before setting out on his peregrinations, indulges us, in Letter I, with a very well executed outline sketch, or scratch, of Philadelphia, not troubling himself much about either his _keeping_ or his _fillings in_. We cannot do better than just copy the whole of his picture.