s before breakfast, an exercise which I shall continue regularly.
My school occupies six hours, and I have resolved to devote, and thus
far, have devoted, six hours of the twenty-four to study." Before this,
he has a memorandum of walking from Cambridge to Bolton, twenty-six
miles; setting out at half-past one, and arriving at Bolton at eight in
the evening.

In 1817, at the age of twenty-eight, and two years after graduation,
his _alma mater_ recognizing the tendency of his mind towards the exact
sciences, as well as the extent of his acquirements, chose him tutor in
Mathematics and Natural Philosophy at Harvard. There also, very soon
afterwards, chiefly under the instruction of the Rev. Dr. Ware, who was
then the Hollis Professor, he commenced the study of divinity, pursuing
it zealously during two years, being, at the same time, the "working
editor" of the North American Review. Its numbers from May, 1817, to
March, 1819, inclusive, were edited by him. In May, of the latter year,
at the age of thirty, he was called to Baltimore and ordained in this
city as the first pastor of the Unitarian church which had just been
erected. On this memorable occasion, the Rev. Dr. William Ellery
Channing preached that discourse in exposition of the Unitarian faith,
which has been so widely celebrated, published, and read in America and
Europe: a discourse which is said to have "caused more remark on its
theological views, while more controversy grew out of the statement of
doctrines therein declared, than any single religious discourse in this
country ever occasioned."

As clergyman of this congregation, Mr. Sparks remained a resident of
our city for four years. He is well remembered in the families of his
own church and of other religious societies, among whose members his
firm but genial manners always made the studious and estimable
gentleman a welcome guest. He was a steadfast laborer among his
congregation; but the ultimate literary drift of his life was already
beginning to develop itself, having probably received an impetus from
his editorial task on the North American Review. In addition to his
clerical duty in Baltimore, he did a great deal of work in editing the
Unitarian Miscellany, in publishing his well-known Letters on the
Comparative Moral tendency of the Unitarian and Trinitarian Doctrines,
which drew on him the controversial notice of that renowned champion,
Dr. Miller, of Princeton, and produced a discussion, whic