Mr. Rollins's name was presented by his friends for United States senator in 1866, when Hon. James W. Patterson was nominated and elected; in 1870, when Senator Cragin was re-elected; and again, in 1873, when the choice fell upon Hon. Bainbridge Wadleigh. At the expiration of Senator Cragin's second term, in 1879, Mr. Rollins was nominated by the Republican caucus, and elected as his successor for the full term of six years, commencing in March, 1877. He took his seat in the senate at the extra session, in the spring of 1877, and was assigned to the committees on the District of Columbia, Contingent Expenses, and Manufactures, being for a time chairman of the latter. He is now a member of the committee on Naval Affairs, on the District of Columbia, on Retrenchment and Reform in the Civil Service, on Enrolled Bills, and is chairman of the committee on Public Buildings and Grounds. As a senator, he has exhibited constantly his peculiar traits of industry, energy, and fidelity to duty. Engaging in debate less than some other senators, and never parading before the country for effect, he yet speaks on all proper occasions, and always to the business in hand, and with characteristic force, point, and effectiveness. He is seldom absent from his seat, responds to every roll-call, and but few questions have arisen since his service began on which his vote is not recorded. It is a noteworthy fact, that during more than five years' service in the senate he has been absent but two days when both branches of congress were in session, and then was sick in bed with malarial fever. No senator has a clearer or cleaner record in this respect. His devotion to his state and constituents is very marked. Every letter is answered, every call responded to, and every New Hampshire man dwelling in or visiting Washington is treated by him with courtesy, and his business with the government carefully attended to and furthered by his active assistance. Among the measures of special interest to the people of New Hampshire, in which he has taken a leading part, are those for the relief of savings banks from national taxation, and appropriations for the improvement of Cochecho, Exeter, and Lamprey rivers. No senator in the chamber gives more assiduous attention to the work of the committees, where measures are matured, or has a more useful influence upon general legislation; and his friends feel a just pride in the fact that in a somewhat venal and very suspicious age his name is untainted by any schemes of corruption or jobbery, or scandals touching the use of public money.