[P] This important work not being yet brought to a completion,—the ultimate and abiding influence of the alterations cannot be accurately predicted. The entrance of the harbour, by the new extension of the east pier, having been narrowed, perhaps too considerably, a temptation is offered to cast the terminal length, or head, in a bell-mouthed fashion more easterly. If such an arrangement were made (as my intelligent connection, Mr. Jackson of Whitby, suggests) it _might_ produce a very mischievous effect by giving a broad fan-tail exit to the escaping ebb-tide waters, and so diminishing their force at the very point where concentration and compactness of efflux are of the greatest importance in scouring the entrance and keeping it clear of sandy deposits. PUBLICATIONS BY THE REV. W. SCORESBY, D.D. F.R.S.S., LOND. AND EDIN., MEMBER OF THE INSTITUTE OF FRANCE, OF THE AMERICAN INSTITUTE, PHILADELPHIA, ETC. BY LONGMAN & CO. MEMORIALS OF THE SEA: 1. Sabbaths in the Arctic Regions: Second Edition. _Post 8vo._, cloth boards, 3_s._ 6_d._ 2. The Mary Russell: Second Edition. _Post 8vo._, cloth boards, 3_s._ 6_d._ 3. My Father: Being RECORDS of the adventurous Life of the late WILLIAM SCORESBY, Esq. of WHITBY. THE FRANKLIN EXPEDITION: _8vo. cloth boards, with two large Charts, 6s._ Remarks on Researches for North-west Passage: the Public Duty concerning our gallant Countrymen—Historical Sketch of the Plans and Outset of the Missing Expedition, and of Researches made for its Relief—Suggestion of a Plan for present Measures of Search—the Passage of the Middle Ice of Baffin Bay, with illustrative Incidents—on Aids to the furtherance of Research—with an Appendix. MAGNETICAL INVESTIGATIONS: _8vo., with Plates. Part I., 5s.: Part II., 10s. 6d._ Comprising original Researches on,—the Magnetic Capabilities of various descriptions of Steel and Iron—the Ratios of Increase of Power by Combinations of Bars and Plates—the Effects of Hardness, Quality, Form, and Mass on the resulting Magnetic Power—the Determination of the Quality and Temper of Steel best adapted for Compasses, with original Modes of testing the Quality of Iron and Steel, and greatly improving Magnetical Instruments in general. ZOISTIC MAGNETISM: _8vo. 6s._ Consisting of original Researches in Mesmeric Phenomena, with the view of eliciting the Scientific Principles of this mysterious Agency—and in which Experiments are described eliciting strong Electric or Magneto-electric Conditions, with the intercepting of the Mesmeric Influence by Electrics, and the neutralizing of the Effects of Substances, having an ungenial Influence on the Subject, by the same Process as was found to neutralize the Electricity of Sealing-wax, etc., as acting on the Electroscope. JEHOVAH GLORIFIED IN HIS WORKS: A Sermon preached in St. James’ Episcopal Chapel, Edinburgh, August 4, 1850, on occasion of the Meeting of the British Association for the Advancement of Science.—1_s._