In the vicinity of New Haven there is a hill occupied many years ago by Coast Survey parties, and called in their records Rabbit Rock. Surveying parties last year in searching for this station inquired diligently in the vicinity and failed to find any information respecting it for some time. The place, however, is well known to all the people for many miles around as Peter's Rock, and this name appears on the county atlas of New Haven, published in 1856. I suppose the name Rabbit Rock has found earlier publication on Coast Survey charts or in its reports, though I have not verified this supposition. But assuming that it has been so published, shall we now call that hill Rabbit Rock or Peter's Rock? Allegany County, New York, is spelled Allegany. A post office in Sierra County, California, is spelled Alleghany; the city of Allegheny near Pittsburg, Pennsylvania, is spelled Allegheny. Shall these names be allowed to stand unchanged, or should an attempt be made to reduce them all to one form? In the last century, the place we now know as Sitka was known to the English as Norfolk Sound, to the French as Tchinkitane Bay, and to the Russians as New Archangel. The earliest of these names being Norfolk Sound. Is there any doubt in this case as to the advisability of retaining the name Sitka? The great sea between Northeastern Asia and Northwestern America, at one time known as the Sea of Kamchatka, and now known as Bering Sea, has been variously written Bhering Sea, Behring Sea, Beering Sea, Bering Sea, as well as all these forms with the addition of the apostrophe "s." I will not ask what is the correct name, as the question in this form seems to imply that there is a correct form, and all other forms are erroneous. The question should rather be, what form is it advisable to adopt with the view, let us hope, of securing its general adoption?