his doings from start to finish it would be difficult at this time to ascertain the facts.
Preliminary surveys were begun on a high bluff east of the Narrows on April 14, 1862, by two engineers, with a laborer to assist, and on April 16 Roberdeau Buchanan joined them.
It was he who made the record to which we allude.
It is illustrated by accurate drawings of the entire work, explanatory of the text of his record, and is now in the office of the Metropolitan Water Commission, by whose courtrkway.
The conduit in one place lies close to the course of the famous old waterway, the Middlesex canal.
Indeed, the old canal contributed to its construction by the removal of one of the banks to grade over the new structure, as shown in Mr. Buchanan's drawing and record.
The slopes of the old Middlesex Canal have been cut down as far as the conduit is built so as to make a four-foot fill on the center and eight feet wide on top, and from the outer edge of the canal to the inner edge of
was first dammed.
While this work was in progress some information relative to the lower lake was obtained, which we quote:—
An experiment was made by Engineer Buchanan to ascertain the depth at which the water in the lower pond becomes salt.
A copper wire coated with silver was suspended from a float anchored in 54 feet ofeer, six ex-Mayors, and others were introduced and spoke, each placing a sod in the wheelbarrow at conclusion of remarks.
Nothing is said in this record of Mr. Buchanan's about the wheeling away of these numerous sods, but in another column is the testimony of an eye-witness.
Mr. Lawrence invited those present to his home, lation was served, thus ending the formal beginning of the work.
Mr. McDonald sublet the construction of the embankment and reservoir to Charles Linehan.
Engineer Buchanan made an interesting record of the manner of its construction and of the difficulties encountered.
Springs were encountered near the westerly corner and for