March 9.--The _Concord Monitor_, in announcing the result of the vote on this day on the question of calling a constitutional convention, says that New Hampshire towns have been directed to vote on the expediency of calling a constitutional convention by the Legislatures of 1799, 1806, 1813, 1820, 1832, 1833, 1837, 1844, 1846, 1849, 1857, 1860, 1862, 1864, 1868, 1869, 1875, 1883, resulting in the conventions of 1850-1 and 1876-7. The proposition had a sufficient majority this time. * * * * * March 10.--An explosion on the tug-boat "John Markee," in Boston Harbor, instantly killed the entire crew, consisting of five men. * * * * * March 12.--At a special meeting of both branches of the Cambridge City Council, a special committee was appointed on the part of the city government to confer with the committee on the part of the citizens relative to a suitable observance of the twenty-fifth anniversary of the departure for the seat of war of Co. C, Third Regiment of Infantry, of Cambridge. This was the first volunteer company organized for the war of the rebellion in the city. Ex-Mayors Montague, Saunders, and Harding, ex-Aldermen Thurston and Chapman, and Mr. J. W. Merrill, made short addresses, urging the necessity of making the 17th of April a day of local pride for Cambridge. The following committee on the part of the citizens was chosen: ex-Mayors Bradford, Harding, Montague, and Saunders, ex-Alderman F. L. Chapman and D. H. Thurston, and Messrs. George H. Howard, J. C. Wellington, and L. B. Porter. On the part of the City Council there were chosen Mayor Russell, Aldermen Hincks and Lindsay, and Councilmen Kemp, Ivers, Coveney, and President Corcoran. * * * * * March 15.--At a meeting of the committee having in charge the preparations for the celebration of the fiftieth anniversary of the incorporation of the city of Lowell, the following programme was agreed on, for April 1: In the morning, singing by public-school children, and address by C. C. Chase, former principal of the High School. In the afternoon, prayer by the Rev. Owen Street; address by Mayor Abbott; oration by the Hon. F. T. Greenhalge; in the evening, addresses by ex-mayors. * * * * *