OF ARTS AND SCIENCES : MAY 28, 1867. 299 



lege in 1820, he continued in that office until 1826, when he became 

 Professor of Mathematics and Natural Philosophy. The very next 

 year, however, he resigned his professorship, to devote himself to Civil 

 Engineering ; and the same year he was appointed a member of the 

 State Board of Internal Improvements, and also engineer to this Board. 



His first work appears to have been a survey, made in 1827, of a line 

 from Boston to Providence for a railroad to be worked by horse-power. 

 This was followed by a survey of a line from Plymouth to Wareham. 

 In 1829 he visited Pennsylvania and Maryland, and made a report on 

 the internal improvements of those States. These and similar labors 

 give him an honorable place among those who introduced the railway 

 system into Massachusetts. Subsequently (1836 to 1845) he was en- 

 gineer of the Boston and Maine Railroad, the greater part of which 

 was built by him. He was President of this road from 1853 to 1856. 

 Mr. Hayward also took an early interest in the preservation of the 

 harbor of Boston, and was a member of the first Board of Harbor 

 Commissioners. Besides the extended surveys then made, and others 

 ten years later, as a Commissioner on the third Board he was con- 

 sulted, in 1850, by a Committee of the Legislature on the Harbor, and 

 in 1853 by a Commitiee of the City Government on the Harbor, and 

 made reports to both these bodies. In the former of these reports 

 he recommended the building of a sea-wall along the northern border 

 of the South Boston flats to Fort Independence, which is one of the 

 main features in the present plans for improving the harbor. Mr. 

 Hayward was elected into this Academy in 1834. 



At the close of his long and useful career, Mr. Hayward testified 

 his love of science and his interest in the elevation of his fellow-men 

 by many noble bequests. Among the most important of these were 

 three of $ 20,000 each to the Observatory at Cambridge, to the Massa- 

 chusetts Institute of Technology, and to the Unitarian Association, for 

 the support of foreign missions. 



Dr. Reuben Dur.ra.nd Mussey died in Boston on the 21st of 

 June, 1866, at the age of eighty-six years, having been born at Pel- 

 ham, New Hampshire, June 23, 1780. His childhood was passed in 

 different country towns of New Hampshire, in which his father suc- 

 cessively resided, until, at the age of twenty-one, he entered the Junior 

 class at Dartmouth College. He pursued his medical studies at the 

 same institution, under the tuition of the celebrated Professor Nathan 

 Smith, and afterwards at the University of Pennsylvania, from which 



